RECON: TNO occultation with 500880

Event between (500880) 13JJ64 and star GA0740:06128034 with event index number of 2453661

Geocentric closest approach at 2023/06/20 04:12:50 UTC

J2000 position of star is 16:34:11.5 -15:13:39
Equinox of date position of star is 16:35:25.9 -15:16:17
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon. Moon is 4% illuminated.
TNO apparent brightness V=24.0

[RECON map]
TNO is 45.7 AU from the Sun and 44.8 AU from the Earth.
The TNO is moving 23.3 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 451 seconds.
The 1-sigma cross-track error in the shadow position is 2819 km.
The sky-plane scale is 32487.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.0 km assuming a 5% albedo -- 8.4 sec chord
Diameter=79.6 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 500880, (2023/06/20 04:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.0 -26:28:55  0.9 11.26 139
13Zet Oph      16:38:27.2 -10:36:46  2.6  4.72 135
8Phi Oph       16:32:29.2 -16:39:43  4.0  1.57 136
PPM 231844     16:34:59.3 -15:04:09  8.5  0.24 136
PPM 231862     16:35:42.6 -15:14:29  9.5  0.06 137
500880         16:35:31.6 -15:16:29 16.7       137
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 2.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
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 04:14:52 -1.3 CT Up 17.3 143.5 Really Low 03:59:52 - 04:29:52 8713
Kelowna 04:14:54 -1.5 CT Up 17.5 143.3 Really Low 03:59:54 - 04:29:54 8689
Peachland 04:14:55 -1.4 CT Up 17.5 143.0 Really Low 03:59:55 - 04:29:55 8678
Summerland 04:14:55 -1.5 CT Up 17.7 143.1 Really Low 03:59:55 - 04:29:55 8671
Penticton 04:14:55 -1.6 CT Up 17.8 143.2 Really Low 03:59:55 - 04:29:55 8669
Oliver 04:14:55 -1.9 CT Up 18.1 143.1 Really Low 03:59:55 - 04:29:55 8650
Anarchist Mountain Observatory 04:14:55 -2.1 CT Up 18.3 143.3 Really Low 03:59:55 - 04:29:55 8644
Tonasket 04:14:56 -2.3 CT Up 18.5 143.1 Really Low 03:59:56 - 04:29:56 8625
Okanogan 04:14:57 -2.4 CT Up 18.7 142.9 Really Low 03:59:57 - 04:29:57 8603
Brewster 04:14:58 -2.5 CT Up 18.8 142.7 Really Low 03:59:58 - 04:29:58 8584
Manson/Chelan 04:15:00 -2.4 CT Up 18.9 142.3 Really Low 04:00:00 - 04:30:00 8565
Victoria 04:15:06 -0.3 Sun up Up 17.0 139.5 Really Low 04:00:06 - 04:30:06 8547
Wenatchee 04:15:01 -2.6 CT Up 19.2 142.1 Really Low 04:00:01 - 04:30:01 8535
Ellensburg 04:15:02 -2.8 CT Up 19.4 141.8 Really Low 04:00:02 - 04:30:02 8506
Pasco 04:15:00 -4.0 CT Up 20.6 142.9 Low 04:00:00 - 04:30:00 8485
Yakima 04:15:03 -3.0 CT Up 19.7 141.7 Really Low 04:00:03 - 04:30:03 8481
PNWRO 04:15:00 -4.3 CT Up 20.9 143.1 Low 04:00:00 - 04:30:00 8474
Toppenish/White Swan 04:15:03 -3.3 CT Up 19.9 141.8 Really Low 04:00:03 - 04:30:03 8471
Goldendale 04:15:04 -3.4 CT Up 20.2 141.3 Low 04:00:04 - 04:30:04 8430
The Dalles 04:15:06 -3.3 CT Up 20.2 140.9 Low 04:00:06 - 04:30:06 8409
Maupin 04:15:07 -3.7 CT Up 20.6 140.9 Low 04:00:07 - 04:30:07 8385
Dunrhomin 04:14:27 -15.3 AT Up 30.9 155.1 Up 03:59:27 - 04:29:27 8331
Redmond 04:15:09 -4.2 CT Up 21.3 140.6 Low 04:00:09 - 04:30:09 8326
Sisters 04:15:10 -3.9 CT Up 21.1 140.2 Low 04:00:10 - 04:30:10 8321
Bend 04:15:09 -4.2 CT Up 21.4 140.4 Low 04:00:09 - 04:30:09 8310
Oregon Observatory 04:15:10 -4.3 CT Up 21.4 140.3 Low 04:00:10 - 04:30:10 8296
La Pine/Gilchrist 04:15:10 -4.4 CT Up 21.6 140.2 Low 04:00:10 - 04:30:10 8282
North Lake 04:15:10 -5.0 CT Up 22.2 140.6 Low 04:00:10 - 04:30:10 8265
Paisley 04:15:10 -5.5 CT Up 22.8 140.8 Low 04:00:10 - 04:30:10 8235
Lakeview 04:15:10 -6.0 CT Up 23.3 140.8 Low 04:00:10 - 04:30:10 8204
Chiloquin 04:15:14 -4.9 CT Up 22.2 139.6 Low 04:00:14 - 04:30:14 8202
Klamath Falls 04:15:14 -5.1 CT Up 22.5 139.5 Low 04:00:14 - 04:30:14 8180
Cedarville 04:15:11 -6.5 NT Up 23.8 140.8 Low 04:00:11 - 04:30:11 8163
Fall River/Burney 04:15:15 -6.1 NT Up 23.6 139.6 Low 04:00:15 - 04:30:15 8107
Susanville 04:15:14 -6.9 NT Up 24.5 140.1 Low 04:00:14 - 04:30:14 8077
Gimple 04:15:15 -7.0 NT Up 24.6 139.8 Low 04:00:15 - 04:30:15 8053
Greenville 04:15:15 -6.9 NT Up 24.5 139.7 Low 04:00:15 - 04:30:15 8052
Portola 04:15:14 -7.4 NT Up 25.0 140.1 Low 04:00:14 - 04:30:14 8038
Quincy 04:15:16 -7.1 NT Up 24.7 139.7 Low 04:00:16 - 04:30:16 8038
Reno 04:15:13 -8.0 NT Up 25.6 140.6 Low 04:00:13 - 04:30:13 8032
Carson City 04:15:14 -8.2 NT Up 25.8 140.5 Low 04:00:14 - 04:30:14 8007
Yerington 04:15:12 -8.7 NT Up 26.3 141.0 Low 04:00:12 - 04:30:12 8005
Gardnerville 04:15:14 -8.4 NT Up 26.1 140.4 Low 04:00:14 - 04:30:14 7990
Hawthorne 04:15:11 -9.3 NT Up 26.9 141.3 Low 04:00:11 - 04:30:11 7982
Tonopah 04:15:08 -10.5 NT Up 28.0 142.5 Low 04:00:08 - 04:30:08 7975
Lee Vining 04:15:14 -9.4 NT Up 27.1 140.7 Low 04:00:14 - 04:30:14 7932
Bishop 04:15:12 -10.2 NT Up 27.9 141.2 Low 04:00:12 - 04:30:12 7902
Beatty 04:15:08 -11.5 NT Up 29.1 142.6 Low 04:00:08 - 04:30:08 7899
Indian Springs 04:15:04 -12.4 AT Up 29.9 143.5 Low 04:00:04 - 04:30:04 7895
Henderson 04:15:03 -13.1 AT Up 30.6 144.0 Up 04:00:03 - 04:30:03 7868
Patrick 04:15:01 -14.2 AT Up 31.7 144.8 Up 04:00:01 - 04:30:01 7842
Kingman/Dolan Springs 04:15:01 -14.2 AT Up 31.8 144.6 Up 04:00:01 - 04:30:01 7822
Laughlin/Bullhead City 04:15:03 -14.0 AT Up 31.5 144.1 Up 04:00:03 - 04:30:03 7810
Mohave Valley 04:15:03 -14.1 AT Up 31.8 144.0 Up 04:00:03 - 04:30:03 7789
Lake Havasu City 04:15:03 -14.6 AT Up 32.2 144.1 Up 04:00:03 - 04:30:03 7764
George/Scottsdale 04:14:55 -16.6 AT Up 34.0 146.2 Up 03:59:55 - 04:29:55 7750
Parker 04:15:03 -14.8 AT Up 32.5 144.0 Up 04:00:03 - 04:30:03 7737
CPSLO 04:15:22 -10.1 NT Up 28.4 138.4 Low 04:00:22 - 04:30:22 7701
Blythe 04:15:05 -15.0 AT Up 32.8 143.5 Up 04:00:05 - 04:30:05 7691
Idyllwild 04:15:11 -13.6 AT Up 31.6 141.5 Up 04:00:11 - 04:30:11 7660
Wildwood 04:15:17 -12.2 AT Up 30.4 139.9 Up 04:00:17 - 04:30:17 7649
Calipatria 04:15:08 -14.8 AT Up 32.7 142.4 Up 04:00:08 - 04:30:08 7634
Yuma 04:15:05 -15.6 AT Up 33.5 143.1 Up 04:00:05 - 04:30:05 7618

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 500880, (2023/06/20 04:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.26 139
13Zet Oph      16:37:09.6 -10:34:01  2.6  4.72 135
8Phi Oph       16:31:08.3 -16:36:47  4.0  1.57 136
PPM 231844     16:33:39.3 -15:01:18  8.5  0.24 136
PPM 231862     16:34:22.4 -15:11:38  9.5  0.06 137
500880         16:34:11.5 -15:13:39 16.7       137
Positions are for J2000

Event circumstances last updated at 2021/10/17 01:19:50 UT

Marc W. Buie, Southwest Research Institute

RECON