RECON: TNO occultation with 05PS21

Event between 05PS21 and star GA0880:19266268 with event index number of 2569355

Geocentric closest approach at 2023/10/23 07:05:32 UTC

J2000 position of star is 23:51:56.3 -00:22:32
Equinox of date position of star is 23:53:03.4 -00:15:15
Stellar brightness G=14.4, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 63% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 43.7 AU from the Sun and 42.8 AU from the Earth.
The TNO is moving 20.8 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 208 seconds.
The 1-sigma cross-track error in the shadow position is 3192 km.
The sky-plane scale is 31071.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=292.4 km assuming a 5% albedo -- 13.6 sec chord
Diameter=119.4 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 05PS21, (2023/10/23 06:54UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:57.6 -29:29:44  1.2 31.98  25
Algenib        00:14:27.9 +15:18:57  2.8 16.42  57
PPM 174549     23:55:59.8 +00:14:30  5.6  0.86  45
PPM 181698     23:48:55.2 -00:37:48  7.9  1.13  43
PPM 181712     23:55:48.2 -00:27:11  9.6  0.69  44
PPM 181707     23:54:12.8 -00:10:10 10.7  0.27  44
05PS21         23:53:09.5 -00:14:35 14.4        44
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 4.3 sigma about the mid-time.
The median site spacing is 22.4 km RECON observability=1.0 and success probability=4.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:02:58 -50.3 Dark Up 36.6 205.1 Up 06:47:58 - 07:17:58 8143
Victoria 07:03:10 -51.1 Dark Up 39.2 200.6 Up 06:48:10 - 07:18:10 8127
Kelowna 07:02:59 -50.6 Dark Up 37.0 205.0 Up 06:47:59 - 07:17:59 8117
Peachland 07:02:58 -50.7 Dark Up 37.2 204.7 Up 06:47:58 - 07:17:58 8117
Summerland 07:02:57 -50.8 Dark Up 37.3 204.8 Up 06:47:57 - 07:17:57 8103
Penticton 07:02:58 -50.9 Dark Up 37.3 205.0 Up 06:47:58 - 07:17:58 8095
Oliver 07:02:57 -51.3 Dark Up 37.6 205.1 Up 06:47:57 - 07:17:57 8067
Anarchist Mountain Observatory 07:02:57 -51.5 Dark Up 37.7 205.4 Up 06:47:57 - 07:17:57 8049
Tonasket 07:02:59 -51.8 Dark Up 38.0 205.4 Up 06:47:59 - 07:17:59 8027
Okanogan 07:02:58 -52.1 Dark Up 38.4 205.4 Up 06:47:58 - 07:17:58 8004
Brewster 07:03:00 -52.3 Dark Up 38.7 205.2 Up 06:48:00 - 07:18:00 7989
Manson/Chelan 07:03:01 -52.4 Dark Up 39.0 204.8 Up 06:48:01 - 07:18:01 7983
Wenatchee 07:03:01 -52.8 Dark Up 39.5 204.8 Up 06:48:01 - 07:18:01 7951
Ellensburg 07:03:01 -53.2 Dark Up 39.9 204.7 Up 06:48:01 - 07:18:01 7925
Yakima 07:03:02 -53.6 Dark Up 40.3 204.8 Up 06:48:02 - 07:18:02 7893
Toppenish/White Swan 07:03:01 -53.8 Dark Up 40.4 205.1 Up 06:48:01 - 07:18:01 7870
Goldendale 07:03:03 -54.2 Dark Up 41.0 204.7 Up 06:48:03 - 07:18:03 7839
The Dalles 07:03:05 -54.4 Dark Up 41.3 204.4 Up 06:48:05 - 07:18:05 7832
Pasco 07:02:57 -54.2 Dark Up 40.1 206.7 Up 06:47:57 - 07:17:57 7823
PNWRO 07:02:58 -54.4 Dark Up 40.3 207.1 Up 06:47:58 - 07:17:58 7796
Maupin 07:03:02 -54.8 Dark Up 41.7 204.6 Up 06:48:02 - 07:18:02 7795
Sisters 07:03:08 -55.5 Dark Up 42.6 204.4 Up 06:48:08 - 07:18:08 7738
Redmond 07:03:04 -55.6 Dark Up 42.5 204.9 Up 06:48:04 - 07:18:04 7724
Bend 07:03:04 -55.8 Dark Up 42.8 204.8 Up 06:48:04 - 07:18:04 7711
Oregon Observatory 07:03:06 -55.9 Dark Up 43.0 204.7 Up 06:48:06 - 07:18:06 7701
La Pine/Gilchrist 07:03:07 -56.1 Dark Up 43.2 204.7 Up 06:48:07 - 07:18:07 7686
North Lake 07:03:06 -56.6 Dark Up 43.4 205.6 Up 06:48:06 - 07:18:06 7631
Chiloquin 07:03:09 -57.0 Dark Up 44.3 204.7 Up 06:48:09 - 07:18:09 7605
Klamath Falls 07:03:09 -57.4 Dark Up 44.6 204.9 Up 06:48:09 - 07:18:09 7573
Paisley 07:03:04 -57.2 Dark Up 43.8 206.3 Up 06:48:04 - 07:18:04 7573
Lakeview 07:03:03 -57.8 Dark Up 44.2 206.8 Up 06:48:03 - 07:18:03 7524
Cedarville 07:03:03 -58.4 Dark Up 44.7 207.3 Up 06:48:03 - 07:18:03 7463
Fall River/Burney 07:03:08 -58.6 Dark Up 45.5 205.9 Up 06:48:08 - 07:18:08 7461
Susanville 07:03:06 -59.3 Dark Up 45.8 207.2 Up 06:48:06 - 07:18:06 7383
Greenville 07:03:07 -59.5 Dark Up 46.2 207.0 Up 06:48:07 - 07:18:07 7369
Gimple 07:03:07 -59.5 Dark Up 46.2 207.1 Up 06:48:07 - 07:18:07 7366
Quincy 07:03:08 -59.7 Dark Up 46.4 207.1 Up 06:48:08 - 07:18:08 7351
Portola 07:03:06 -60.0 Dark Up 46.3 207.8 Up 06:48:06 - 07:18:06 7325
Reno 07:03:03 -60.4 Dark Up 46.3 208.8 Up 06:48:03 - 07:18:03 7280
Carson City 07:03:04 -60.7 Dark Up 46.6 209.0 Up 06:48:04 - 07:18:04 7248
Gardnerville 07:03:02 -61.0 Dark Up 46.8 209.2 Up 06:48:02 - 07:18:02 7225
Yerington 07:03:02 -61.1 Dark Up 46.5 209.9 Up 06:48:02 - 07:18:02 7209
Hawthorne 07:03:00 -61.7 Dark Up 46.7 210.9 Up 06:48:00 - 07:18:00 7150
Lee Vining 07:03:02 -62.1 Dark Up 47.4 210.5 Up 06:48:02 - 07:18:02 7117
Tonopah 07:02:55 -62.4 Dark Up 46.6 213.0 Up 06:47:55 - 07:17:55 7062
Bishop 07:03:00 -62.8 Dark Up 47.6 211.8 Up 06:48:00 - 07:18:00 7039
Beatty 07:02:52 -63.6 Dark Up 47.3 214.2 Up 06:47:52 - 07:17:52 6942
CPSLO 07:03:09 -64.0 Dark Up 50.3 210.0 Up 06:48:09 - 07:18:09 6930
Dunrhomin 07:02:14 -60.8 Dark Down 39.0 225.8 Up 06:47:14 - 07:17:14 6886
Indian Springs 07:02:50 -64.2 Dark Up 47.1 215.9 Up 06:47:50 - 07:17:50 6875
Henderson 07:02:49 -64.8 Dark Up 47.2 217.1 Up 06:47:49 - 07:17:49 6803
Wildwood 07:03:02 -65.8 Dark Up 50.5 213.6 Up 06:48:02 - 07:18:02 6747
Laughlin/Bullhead City 07:02:47 -65.7 Dark Up 47.7 218.2 Up 06:47:47 - 07:17:47 6708
Patrick 07:02:44 -65.6 Dark Up 47.1 218.9 Up 06:47:44 - 07:17:44 6707
Kingman/Dolan Springs 07:02:46 -65.8 Dark Up 47.4 218.8 Up 06:47:46 - 07:17:46 6692
Mohave Valley 07:02:47 -66.0 Dark Up 47.9 218.4 Up 06:47:47 - 07:17:47 6682
Idyllwild 07:02:56 -66.7 Dark Up 49.9 216.4 Up 06:47:56 - 07:17:56 6648
Lake Havasu City 07:02:47 -66.4 Dark Up 48.1 219.0 Up 06:47:47 - 07:17:47 6636
Parker 07:02:47 -66.8 Dark Up 48.3 219.3 Up 06:47:47 - 07:17:47 6602
Blythe 07:02:48 -67.3 Dark Up 48.9 219.3 Up 06:47:48 - 07:17:48 6562
Calipatria 07:02:52 -67.5 Dark Up 49.8 218.4 Up 06:47:52 - 07:17:52 6549
George/Scottsdale 07:02:40 -67.5 Dark Up 47.4 222.6 Up 06:47:40 - 07:17:40 6479
Yuma 07:02:49 -68.2 Dark Up 49.6 219.9 Up 06:47:49 - 07:17:49 6476

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 05PS21, (2023/10/23 06:54UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 31.98  25
Algenib        00:13:14.2 +15:11:01  2.8 16.42  57
PPM 174549     23:54:46.6 +00:06:33  5.6  0.86  45
PPM 181698     23:47:42.0 -00:45:44  7.9  1.13  43
PPM 181712     23:54:35.0 -00:35:08  9.6  0.69  44
PPM 181707     23:52:59.6 -00:18:07 10.7  0.27  44
05PS21         23:51:56.3 -00:22:32 14.4        44
Positions are for J2000

Event circumstances last updated at 2021/10/27 00:05:29 UT

Marc W. Buie, Southwest Research Institute

RECON