TLP Repeat Illumination/Libration and Earthshine predictions for: Canada BC Vancouver



Ill is percentage illumination of the Moon
*Indicates a repeat illumination and libration event to within +/- 1 deg for both
A non-* indicates just repeat illumination to within +/-0.5 deg


2020-Jul-02 UT 04:23-05:36 Ill=89% Plato observed by North_G on 1981-8-11

     On 1981 Aug 11 at UT21:05-21:36 G. North (England, seeing=poor) 
     detected, in green light, a darkening on the floor of Plato. This 
     effect was not seen elsewhere. J-H Robinson (Teighmouth, Devon, UK) 
     detected on the SSE rim (inner and beyond) a triangle that appeared 
     hazy in a wide range of filters at 21:05UT. However at 21:36UT it was 
     only hazy in green and blue light. No similar effect was seen 
     elsewhere. The Cameron 2006 catalog ID=150 and weight=5. The ALPO/BAA 
     weight=3.


2020-Jul-02 UT 04:23-04:33 Ill=89% Aristarchus observed by Zeller_P on 2013-4-22

     On 2013 Apr 22 UT 01:39-02:37 P. Zeller (Indianapollis, USA, 
     10" f/4 reflector, x200, seeing 6, Transparency 3 - scattered 
     cirrus) observed visually (depicted in sketch) the two closely 
     spaced NW wall dark bands) to have a rusty-red hue. The colour 
     of these bands did not change over the period of the observing 
     session. Images were taken, but resolution and image S/N is 
     not sufficient to resolve separate bands here, or to detect 
     colour. The ALPO/BAA weight=2.


2020-Jul-02 UT 04:35-06:29 Ill=89% Gassendi observed by Cook_AC on 1977-10-23

     On 1978 Oct 23 observing period: UT22:00-22:40 A.C. Cook (Frimley, 
     Surrey, UK, 6" reflector, x144, 6mm Ortho eyepiece, seeing IV, red and 
     blue filters used) saw at 22:10 a secctor on thwe western floor to be 
     mainly bright in the red. The surface was bumpy here. The observer at 
     the time commented that this was probably not a TLP, but no precise 
     explanation given. ALPO/BAA weight=1.


2020-Jul-02 UT 04:48-06:35 Ill=89% Torricelli_B observed by North_G on 1995-4-11

     Torricelli B 1995 Apr 11 UTC 20:15 Observed by North (UK). "Colour 
     moonblink reaction, and crater dull". BAA Lunar Section report. ALP\BAA 
     weight=3.


2020-Jul-02 UT 05:34-06:35 Ill=89% Herodotus observed by Martini_A on 2017-2-8

     On 2017 Feb 08 UT 01:45 A.Martini Jr (10" Schmidt-Cassegrain 
     with ASI 120 MC camera +IR filter, Gain 40, Gamma 36, 
     exposure 0.003 sec) saw on a computer monitor screen a flash 
     to far to the west of Herodotus and Aristarchus at the 
     location 54.53W, 23.5N. It had a duration of 0.5 sec and on a 
     brightness scale of 0 = night side of the Moon to 10 = 
     Aristarchus, ranked 7. Unfortunately they were not recording 
     at the time. As there was no confirmation observation and it 
     could be a cosmic ray air shower detection, the ALPO/BAA 
     weight=1


2020-Jul-03 UT 04:15-04:21 Ill=95% Philolaus observed by Baum_R on 1948-5-20 *

     NE of Philolaus 1948 May 20 UT 22:00-22:15 Observed by Baum 
     (Chester, UK, 4.5" refractor) A distinct reddish tint suddenly 
     appeared to the NE of the crater, and persisted for 15 min, 
     before rapidly fading away. NASA catalog weight=3. NASA 
     catalog ID #505. ALPO/BAA weight=3.


2020-Jul-03 UT 04:42-05:42 Ill=95% Herodotus observed by Porta on 1965-6-12 *

     On 1965 Jun 12 at UT > 00:00 an unknown observer (Porta?) reported that 
     the area of Herodotus and the Cobra Head expanded and the colour went 
     to rose. The next night the floor was normal. In filters, phenomenon 
     accentuated in orange. The cameron 1978 catalog ID=880 and weight=3. 
     The ALPO/BAA weight=2.


2020-Jul-06 UT 12:10-12:21 Ill=98% Proclus observed by Bartlett on 1957-3-17 *

     "Proclus D. (Bartlett's designation) appeared as a dark spot, 
     conformable to lts appear. at col. 111.15 deg in '55. Proc. A 
     (Bartlett's designation) completely invisible the ordinarily easy to 
     see. Conspic. a' col.103.78deg in 55' & st 110.1 deg in '55, but also 
     invis. at col. 30.78deg in '56". Cameron 1978 catalog ID 665 and 
     weight=4. Observer based in Baltimore, MD, USA and used a 5" reflectore 
     x180 and S=4 and T=5. ALPO/BAA weight=2.


2020-Jul-08 UT 09:36-10:23 Ill=89% Proclus observed by Muller on 1973-1-21

     Proclus 1973 Jan 21/22 UTC 23:57-00:25 Observed by Muller (located at 
     51.42N 8.75E) "Proclus much brighter than Cenorinus" 50mm refractor 
     used. Ref Hilbrecht & Kuveler (1984) Moon and Planets Vol 30 p53-61.


2020-Jul-08 UT 09:36-10:43 Ill=89% Romer observed by Darling_D on 1979-9-9

     On 1979 Sep 09 at UT08:00-08:15 D. Darling (Sun Praire, WI, USA, 12.5" 
     reflector, x75 and photography used, seeing 4/10 and the Moon's 
     altitude was 45deg) photographed Romer crater and recorded two adjacent 
     bright cigar shaped objects - these were the same size as an 
     observation made in 1987. Darling believes that these are ridges. 
     Cameron comments that in LO-IV 192-3,2 a ridge is revealed on the 
     inside wall that matches the description. Cameron 2006 catalog ID=66 
     and weight=2. ALPO/BAA weight=1. 


2020-Jul-08 UT 09:36-10:45 Ill=89% Aristarchus observed by Moore_P on 1982-7-9

     On 1982 Jul 09 at UT 01:05-01:25 P. Moore (Selsey, UK, 12.5"? 
     reflector, seeing III) found that Aristarchus was very bright 
     and slightly blue. Cameron comments that Moore's eyesight is not 
     very blue sensitive. The Cameron 2006 catalog ID=175 and weight=
     4. The ALPO/BAA weight=2.


2020-Jul-08 UT 09:36-10:45 Ill=89% Grimaldi observed by Moore_P on 1982-7-9

     On 1982 Jul 09 at UT01:05-01:25 P. Moore (Selsey, UK, 12.5" reflector, 
     seeing=III) found that Grimaldi A was the 2nd brightest feature on the 
     Moon, and that there was colour detected with a Moon blink device on 
     the floor of Grimaldi. The Cameron 2006 catalog ID=175 and the weight=
     4. The ALPO/BAA weight=3.


2020-Jul-10 UT 10:14-11:35 Ill=74% Aristarchus observed by Bartlett on 1964-7-29

     1964 Jul 29 UT 05:40-06:06 Observed by Bartlett (Baltimore, MD, 
     USA) "Nimbus only -- dark viol. hue. S.floor granulated, dull -- 
     6 bright. Faint yellow-brown tinge. Rest of crater 8." S=6, T=3-
     2. NASA catalog weight=4. NASA catalog ID #838. ALPO/BAA 
     weight=2.


2020-Jul-12 UT 09:57-11:11 Ill=55% Aristarchus observed by Bartlett on 1964-7-31

     Aristarchus 1964 Jul 31 UT 02:00-02:23 Observed by Bartlett 
     (Baltimore, MD, USA, 5" reflector x180) "Deep ravine on E.glacis 
     interrupted midway of its length by apparent break just below 
     rim of craterlet assoc. with EWBS. Normally, ravine is seen 
     continuous. Probable obscuration at pt, of break." S=7, T=5. 
     NASA catalog weight=4. NASA catalog ID #834. ALPO/BAA weight=2.


2020-Jul-12 UT 09:57-10:18 Ill=55% Vallis_Schroteri observed by Unknown_Observer on 1994-4-3

     On 1995 Apr 03 at UT 03:30 Unknown Observer (Transparency good) saw a 
     darkening in the Cobra Head, Schroter's valley area of Aristarchus - 
     the best example that he had ever seen. The Cameron 2006 catalog ID=474 
     and the weight=3. The ALPO/BAA weight=. Reference - BAA Lunar Section 
     circular 1995 Oct, p125 and personal communication from David Darling 
     to the BAA on 6/6/1995. Note it is uncertain whether this refers to the 
     Clementine mission or to somebody who observed during the Clementine 
     mission, or somebody with that surname. Anyway if it is the Clementine 
     mission then the date is wrong - possibly the year should have been 
     1994? The Cameron catalogue does actually mention a TIFF on Clementine 
     mission? The Cameron 2006 catalog ID=474 and the weight=3. I am 
     assuming that the year should be 1994 and not 1995? The ALPO/BAA 
     catalog weight=1 until we can find out what the correct date is?


2020-Jul-13 UT 10:12-12:06 Ill=46% Plato observed by Wilkins_HP on 1944-8-12

     On 1944 Aug 12 at UT 04:00 H.P. Wilkins (Kent, UK, 8.52" 
     reflector) observed that central craterlet in Plato was 
     unusually bright and shows up as a bright white spot on his 
     sketch - though this might have been artistic license in his 
     sketch. His written notes refer to the unusual lack of a rim 
     (especially the northern part) to this craterlet. 
     The ALPO/BAA weight=2.


2020-Jul-13 UT 10:12-11:42 Ill=45% Earthshine: sporadic meteors

2020-Jul-14 UT 10:31-11:44 Ill=36% Earthshine: sporadic meteors

2020-Jul-15 UT 10:54-11:45 Ill=27% Earthshine: sporadic meteors

2020-Jul-16 UT 11:23-11:46 Ill=19% Herodotus observed by Gomez on 1969-8-9

     Herodotus 1969 Aug 09 UTC 03:00-04:03 Observed by Gomez (Sabadell, 
     Spain) desribed in NASA catalog as: "Bright point on SE wall at 0300h, 
     gone at 0322h. Brightened in blink device (Eng.) at 3:30:50, 3:41:36, 
     04:03:21" 12" reflector x155,x258,x388. Average weight=3 in NASA 
     Catalog.
     ALPO/BAA weight=2,


2020-Jul-16 UT 11:23-11:46 Ill=18% Earthshine: sporadic meteors

2020-Jul-17 UT 11:59-12:06 Ill=11% Plato observed by Short_J on 1751-4-22

     James Short, Dr Harris and Mr Stephens saw initially a streak of 
     light on the shadowed floor of Plato. They were not expecting to see
     any light to reach the floor. Shortly afterwards they saw a second
     streak of light parallel to the first and this shortly divided
     into two. Gaps in the mountains were found for both streaks,
     but they were unable to understand why one of the streaks divided
     into two. Cameron's 1978 assigns this TLP an ID of 20 and a weight
     of 5. The ALPO/BAA catalog assigns a weight of 1.


2020-Jul-24 UT 03:58-04:00 Ill=15% Aristarchus observed by Darling_D on 1989-4-10

     On 1989 Apr 10 at UT01:30-02:00 D. Darling (Sun Praire, WI, USA, 12.5" 
     reflector, x64, seeing excellent) observed that Earthshine was not as 
     good as the previous night "~1/4


2020-Jul-24 UT 04:00-00:00 Ill=15% Aristarchus observed by Argelander on 1825-4-22

     In 1825 Apr 22 at UT0030 Argelander (England) and Gobel (Koburg, 
     Germany) saw the following in the vicinity of Aristarchus: "Points of 
     light in center. In low magn. appeared as a small star, somewhat 
     scintillating. At higher magn. became larger & diffused. (date 1824 ? 
     Ref. refers to a ref. dated 1824 -- If so age would have been 23rd" 
     Cameron 1978 catalog ID=107 and weight=5. ALPO/BAA weight=3.


2020-Jul-26 UT 03:56-04:13 Ill=35% Aristarchus observed by McIntosh on 1969-7-20

     On 1969 Jul 20 at UT 0845 McIntosh (Auckland, New Zealand, 14" 
     reflector) saw Aristarchus crater to be brighter in red light. This was 
     during the Apollo 11 watch. The Cameron 1978 catalog ID=1173 and 
     weight=3. The ALPO/BAA weight=3.


2020-Jul-26 UT 03:56-03:57 Ill=35% Gassendi observed by Williamson_P on 1990-3-2

     On 1990 Mar 02 at UT 19:35-19:50 P. Williamson (Shropshire, UK, 14" 
     reflector, x178, seeing=good and steady) noticed a yellow-orange glow 
     in Gassendi (from a small illumnated crater?) in Earthshine at 19:35UT 
     and by 19:40UT it had become very bright white, afterwhich it 
     completely faded within 10 minutes. The Cameron 2006 catalog ID=393 and 
     the weight=1. The ALPO/BAA weight=3.


2020-Jul-26 UT 04:21-04:39 Ill=35% Theophilus observed by Beaumont_S on 1993-12-19

     On 1993 Dec 19 at UT 16:00-17:00 S. Beaumont (Cambridge, UK, 12" 
     reflector, x230) observed in Theophilus that the "c.p. > reddish brown 
     tint to SW (on peak?)" but suspected that it was probably spurious 
     colour, however no colour was seen later. The ALPO/BAA catalog ID=469 
     and the weight=3. The ALPO/BAA weight=2.


2020-Jul-27 UT 03:54-04:51 Ill=46% Maskelyne observed by Whelan on 1969-7-21

     On 1969 Jul 20 at UT09:30 Whelan (Wellington, New Zealand, 10" 
     and 6" reflectors. Other observers involved were: Mackrell 
     (New Zealand, 6" reflector) and Spellman (4" reflector) 
     observed Maskelyne crater undergoing a whitish glowing 
     brightening. Shadowy filling of whole crater. Apollo 11 watch. 
     The Cameron 1978 catalog ID=1179 and the weight=3. The 
     ALPO/BAA weight=2.


2020-Jul-27 UT 03:54-04:51 Ill=46% Menelaus observed by Whelan on 1970-4-13

     On 1970 Apr 13 at UT09:00-09:03 Whelan (Walters, New Zealand, using a 
     10" reflector) observed Menelaus to have a deep red cloud that seemed 
     to surge upward from outside the southern edge of the crater wall and 
     disperse around the outside edge, spreading out on reaching Mare 
     Serentiatis. All clear again though by 09:03UT, (Apollo 13 watch). 
     Drawing supplied. Cameron 978 catalog ID=1246 and weight=3. ALPO/BAA 
     weight=3.


2020-Jul-27 UT 03:54-04:13 Ill=46% Proclus observed by Unknown_Observer on 1988-7-21

     On 1988 Jul 21 at UT 01:00? an Unknown observer (name and geographical 
     position not given in the cameron catalog) detected a darkening on the 
     floor of Proclus crater - this was also seen by other observers - some 
     of whom were making observations independently. The Cameron 2006 
     catalog ID=330 and the weight=1.


2020-Jul-27 UT 04:07-04:48 Ill=46% Posidonius observed by Osawa on 1969-5-23

     Posidonius 1969 May 23 UT 11:35-12:45 Observed by Osawa (Hyogo-ken, 
     Japan, 8" reflector x286) "W.(ast. ?) rim of crater was yellow in 
     integ. light, brownish to deep yellow in filter, with no blink.
     Hue seen thruout obs. (true ground color? or seeing ? or true LTP?) 
     thin clouds. (Apollo 10 watch)". NASA catalog weight=3 average. NASA 
     catalog ID #1141.


2020-Jul-27 UT 04:28-04:51 Ill=46% Mare_Crisium observed by Madej_P on 1982-7-27

     On 1982 Jul 27 at UT 20:04 P. Madej (Newsome, Huddersfield, UK, 16cm 
     reflector, x33, seeing I to II, transparency fair, Hoya linear type 
     polarizer filter) observed that when the filter was used on Mare 
     Crisium, that the north part became a bright gray when turned to 45deg, 
     but when turned the other way it returned to normal. The ALPO/BAA 
     weight=3.


2020-Jul-27 UT 04:39-04:53 Ill=46% Earthshine: Piscis Austrialids - ZHR=5 (Vel=35 km/s)

2020-Jul-28 UT 03:53-04:46 Ill=57% Proclus observed by Foley_PW on 1988-7-22

     On 1988 Jul 22 at UT 02:15-04:00 P.W. Foley (Kent, UK, 11" 
     reflector) made a sketch of a dark area of the (East) floor of 
     Proclus that revealed a large anomalous dark region - there 
     should be no shade here when the sun is at an altitude of above 
     50 deg!. BAA lunar section archives reveal similar dark shadings 
     - however on this night it was a different shaped dark area. The 
     appearance was confirmed by several observers. Foley reported 
     that the region affected stretched from Proclus to Theophilus. 
     The TLP was seen in the USA too by D, Darling as early as 
     01:31UT and by others on his TLP network - brightness 
     measurements of the "c.p." were 3.5 and the remainder of the 
     floor was 5.5. However the observers did not all agree on the 
     same position for this dark area. The Cameron 2006 catalog ID=
     331 and the weight=2. The ALPO/BAA weight=2.


2020-Jul-28 UT 04:04-04:58 Ill=58% Herschel observed by del_Valle_D on 2005-8-13

     Herschel 2005 Aug 13 UT 00:07-00:29 Observed by Daniel del Valle 
     Hernandez (Aguadilla, PR, 8"SCT, x225, S=7, T=4) "Interesting 
     configuration of shadows with umbra and penumbra. Effect seemed to 
     reduce over time." An ALPO report. 	The ALPO/BAA report=2.


2020-Jul-28 UT 04:08-04:58 Ill=58% Ptolemaeus observed by Firsoff on 1954-5-10

     Flash seen in Ptolemaeus (A?) - possibly a meteor. Cameron 1978
     catalog weight=1. Cameron 1978 catalog ID=863.


2020-Jul-28 UT 04:38-04:58 Ill=58% Picard observed by Kursewicz_P on 1994-4-19

     On 1994 Apr 19 at UT 00:00 P. Kursewicz (Epping, NH, USA) observed a 
     dark patch surrounding Picard crater. The ALPO/BAA weight=1.


2020-Jul-28 UT 04:43-04:58 Ill=58% Mons_Pico observed by Adee_J on 2008-4-13

     2009 Apr 13 UT 18:55-20:00 J. Adee (UK) and later A. Jarwaski (UK) saw 
     Mons Pico to be incredibly bright. Adee reported naked eye visibility, 
     though this does not show up in later CCD images. Jarwaski saw another 
     nearby Mt very bright as well. This has been assigned an ALPO/BAA 
     weight of 2, though i suspect it is just normal for Pico to get quite 
     bright at sunrise.


2020-Jul-28 UT 04:48-04:58 Ill=58% Montes_Apenninus observed by Armitage_J on 2008-4-13

     Patches of brightness seen in the area between craters Aratus and Joy.
     Seemed to the observer to be perhaps slightly brighter than one would
     expect - the observer thought that their observation only barely
     constitured a TLP but decided to send the report in anyway. This
     has been assigned an ALPO/BAA weight of 1.


2020-Jul-28 UT 04:57-04:58 Ill=58% Linne observed by Schmidt_J on 1866-10-16

     In 1866 Oct 16 at UT 23:00 Schmidt (Athens, Greece, 7"refractor) 
     observed that Linne crater had disappeared and been replaced by a white 
     patch with a small hill or craterlet. White part seems to increase in 
     size. Cameron says probably not a TLP. The Cameron 1978 catalog ID=145 
     and the weight=0. The ALPO/BAA weight=1.


2020-Jul-28 UT 04:57-04:58 Ill=58% Plato observed by Markov on 1918-5-18

     Plato 1918 May 20 UT 18:00? Observed by Markov (Russia) "Brightness in 
     shadow of the light sector & 1 spot" NASA catalog weight=3 (average). 
     NASA catalog ID #369. ALPO/BAA weight=2.


2020-Jul-29 UT 03:52-04:15 Ill=68% Atlas observed by Knopp_R on 1994-4-19

     On 1994 Apr 19 at UT 22:00 R. Knopp (Berlin, Germany) noticed a 
     darkening of the interior of the crater Atlas. The ALPO/BAA weight=1. 


2020-Jul-29 UT 04:02-04:54 Ill=69% Eratosthenes observed by Cattermole_P on 1954-5-11

     Eratosthenes 1954 May 11 UTC 20:00 Observer: Catermole (UK, 3" 
     refractor) "Central peak invis. tho surroundings were sharp". 
     NASA catalog ID #563, NASA weight=4 (high). ALPO/BAA weight=2.


2020-Jul-29 UT 04:04-04:54 Ill=69% Plato observed by Marshall_KP on 1982-11-24

     Plato 1982 Nov 24 UT 22:00-23:30. K.P. MArshall (Columbia, 12" 
     reflector, x100, x200, x480, seeing III, reasonably steady, but 
     some turbulence. No craters could be seen on Plato's floor, 
     despite observing conditions being acceptable. The floor was 
     evenly toned, and the walls were sharply defined. By 23:10 there 
     was a suspicion that the central craterlet was there, but he 
     could not quite make it out, even with averted vision. ALPO/BAA 
     weight=1.


2020-Jul-29 UT 04:17-04:54 Ill=69% Alpetragius observed by Barnard on 1889-9-4

     Alpetragius 1889 Sep 4 UTC 02:30-03:00 Observed by E.E. Barnard (Lick 
     Observatory, CA, USA, 36" refractor x150, x700) "Shadow of CP diffused 
     & pale. Entire inside of crater seemed filled with haze or smoke. Shad. 
     of E.wall was black & sharp. CP & floor seen thru haze. No other 
     craters showed this appear. (date&time rep't=Sep3, 1830L.T)." N.B. Sun 
     above the horizon at 02:30 - sun sets at Lick at 02:37! NASA catalog 
     weight=4 (good). NASA catalog ID #264. ALPO/BAA weight=3.


2020-Jul-29 UT 04:33-04:54 Ill=69% Proclus observed by Darling_D on 1988-7-23

     On 1988 Jul 23 at UT03:07 D. Darling (Sun Praire, WI, USA, 12" 
     reflector, x150, seeing = 6/10) discovered that the dark area on the 
     floor of Proclus, seen earlier by UK observers was still present, but 
     less so (?) and the shape changed. When viewed through a green filter 
     it was less distinct. "Change with two other filters. Polarizer gave a 
     circular shape with a knot on SE side & W58 in White." The measured 
     brightness of Proclus was 9 on three sides and 8.5 on its west rim. The 
     floor was 5.5, but the dark spot was 4. Alphonsus, Bullialdus, 
     Copernicus, Eratosthenes, Plato and Ptolemeaus were all normal. The 
     Cameron 2006 catalog ID=332 and the weight=1. The ALPO/BAA weight=1. 


2020-Jul-29 UT 04:39-04:54 Ill=69% Tycho observed by North_G on 1995-3-10

     Tycho observed by G. North (UK) seen to have greyness
     inside parts of its shadow. Confirmed by J.D. and M.C. Cook
     Possibly light scattered of illuminated wall into shadow
     or highland starting to break through the shadow.
     ALPO/BAA weight=1.


2020-Jul-29 UT 04:54-00:00 Ill=69% Plato observed by Cragg on 1952-4-4

     Plato 1952 Apr 04 UT 02:45 Observer: T.A.Cragg (Mt Wilson, CA, 
     USA, 31cm reflector, x420, seeing fairly good, transparency 
     fair) - Obscur. of floor (seen a few hours after Wilkins & Moore 
     obs. confirm.?) " - indeed Haas in Stolling Astronomer 2002 Vol 
     45, p29 states that Cragg was amazed to see Plato's floor with 
     absolutely nothing on it! He was able to draw details elsewhere 
     in other features. NASA catalog weight=5. NASA TLP ID No. #551. 
     ALPO/BAA weight=3.