RECON: TNO occultation with 13RG98

Event between 13RG98 and star GA0660:00436343 with event index number of 1751637

Geocentric closest approach at 2020/11/25 10:40:19 UTC

J2000 position of star is 05:10:49.8 -23:55:07
Equinox of date position of star is 05:11:40.9 -23:53:41
Stellar brightness G=15.6, use SENSEUP=128
Star is 69 degrees from the moon. Moon is 79% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 21.2 AU from the Sun and 20.5 AU from the Earth.
The TNO is moving 23.3 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 115 seconds.
The 1-sigma cross-track error in the shadow position is 1244 km.
The sky-plane scale is 14894.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=75.9 km assuming a 5% albedo -- 2.6 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 13RG98, (2020/11/25 10:40UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:32.6 -08:10:44  0.1 15.74  68
Nihal          05:29:08.5 -20:44:39  2.8  5.12  72
PPM 248396     05:04:45.3 -24:21:38  5.8  1.65  67
PPM 248553     05:12:02.3 -24:19:29  8.1  0.44  69
PPM 248567     05:12:22.8 -23:48:37  9.2  0.18  69
13RG98         05:11:42.0 -23:53:39 15.6        69
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 5.0 sigma about the mid-time.
The median site spacing is 21.6 km RECON observability=0.5 and success probability=7.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 10:38:16 -48.2 Dark Down 14.6 201.9 Really Low 10:28:09 - 10:48:23 3087
Clarence Fulton 10:38:06 -45.0 Dark Down 12.0 205.4 Really Low 10:27:59 - 10:48:13 3053
Peachland 10:38:07 -45.5 Dark Down 12.6 205.1 Really Low 10:28:00 - 10:48:14 3044
Kelowna 10:38:07 -45.3 Dark Down 12.4 205.3 Really Low 10:28:00 - 10:48:14 3041
Summerland 10:38:07 -45.5 Dark Down 12.7 205.2 Really Low 10:28:00 - 10:48:14 3035
Penticton 10:38:06 -45.5 Dark Down 12.7 205.3 Really Low 10:27:59 - 10:48:13 3029
Oliver 10:38:06 -45.6 Dark Down 13.0 205.3 Really Low 10:27:59 - 10:48:13 3014
Anarchist Mountain Observatory 10:38:05 -45.6 Dark Down 13.1 205.5 Really Low 10:27:58 - 10:48:12 3002
Tonasket 10:38:05 -45.8 Dark Down 13.4 205.5 Really Low 10:27:58 - 10:48:12 2990
Okanogan 10:38:05 -46.0 Dark Down 13.8 205.4 Really Low 10:27:58 - 10:48:12 2979
Manson/Chelan 10:38:06 -46.5 Dark Down 14.4 204.9 Really Low 10:27:59 - 10:48:13 2973
Brewster 10:38:05 -46.2 Dark Down 14.1 205.2 Really Low 10:27:58 - 10:48:12 2972
Entiat 10:38:06 -46.6 Dark Down 14.6 204.9 Really Low 10:27:59 - 10:48:13 2965
Wenatchee 10:38:06 -46.8 Dark Down 14.8 204.8 Really Low 10:27:59 - 10:48:13 2956
Ellensburg 10:38:06 -47.1 Dark Down 15.3 204.6 Really Low 10:27:59 - 10:48:13 2943
Yakima 10:38:05 -47.3 Dark Down 15.6 204.7 Really Low 10:27:58 - 10:48:12 2925
Toppenish/White Swan 10:38:05 -47.2 Dark Down 15.8 204.8 Really Low 10:27:58 - 10:48:12 2910
Goldendale 10:38:05 -47.7 Dark Down 16.4 204.5 Really Low 10:27:58 - 10:48:12 2895
The Dalles 10:38:06 -48.0 Dark Down 16.7 204.2 Really Low 10:27:59 - 10:48:13 2895
Maupin 10:38:05 -48.1 Dark Down 17.1 204.4 Really Low 10:27:58 - 10:48:12 2871
Pasco 10:38:01 -46.5 Dark Down 15.5 206.0 Really Low 10:27:54 - 10:48:08 2868
PNWRO 10:38:01 -46.4 Dark Down 15.7 206.2 Really Low 10:27:54 - 10:48:08 2850
Sisters 10:38:06 -48.8 Dark Down 18.0 204.0 Really Low 10:27:59 - 10:48:13 2842
Redmond 10:38:05 -48.5 Dark Down 17.9 204.4 Really Low 10:27:58 - 10:48:12 2830
Bend 10:38:05 -48.7 Dark Down 18.2 204.3 Really Low 10:27:58 - 10:48:12 2823
Oregon Observatory 10:38:05 -48.8 Dark Down 18.4 204.2 Really Low 10:27:58 - 10:48:12 2818
La Pine/Gilchrist 10:38:05 -49.0 Dark Down 18.6 204.2 Really Low 10:27:58 - 10:48:12 2809
North Lake 10:38:03 -48.7 Dark Down 18.8 204.8 Really Low 10:27:56 - 10:48:10 2770
Klamath Falls 10:38:05 -49.6 Dark Down 20.0 204.1 Really Low 10:27:58 - 10:48:12 2742
Paisley 10:38:02 -48.6 Dark Down 19.2 205.2 Really Low 10:27:55 - 10:48:09 2730
Lakeview 10:38:01 -48.6 Dark Down 19.6 205.4 Really Low 10:27:54 - 10:48:08 2697
Fall River/Burney 10:38:03 -49.7 Dark Down 20.9 204.7 Low 10:27:56 - 10:48:10 2666
Cedarville 10:37:59 -48.7 Dark Down 20.1 205.7 Low 10:27:52 - 10:48:06 2656
Susanville 10:38:00 -49.4 Dark Down 21.3 205.4 Low 10:27:53 - 10:48:07 2609
Greenville 10:38:00 -49.7 Dark Down 21.6 205.2 Low 10:27:53 - 10:48:07 2602
Gimple 10:38:00 -49.6 Dark Down 21.6 205.3 Low 10:27:53 - 10:48:07 2599
Quincy 10:38:00 -49.7 Dark Down 21.8 205.3 Low 10:27:53 - 10:48:07 2590
Portola 10:37:59 -49.4 Dark Down 21.8 205.7 Low 10:27:52 - 10:48:06 2569
Reno 10:37:56 -49.0 Dark Down 21.8 206.3 Low 10:27:49 - 10:48:03 2533
Carson City 10:37:56 -49.1 Dark Down 22.1 206.4 Low 10:27:49 - 10:48:03 2511
Gardnerville 10:37:56 -49.1 Dark Down 22.3 206.5 Low 10:27:49 - 10:48:03 2495
Yerington 10:37:54 -48.6 Dark Down 22.1 207.0 Low 10:27:47 - 10:48:01 2480
Hawthorne 10:37:52 -48.3 Dark Down 22.3 207.6 Low 10:27:45 - 10:47:59 2435
Lee Vining 10:37:53 -48.8 Dark Down 23.0 207.3 Low 10:27:46 - 10:48:00 2417
Tonopah 10:37:47 -47.4 Dark Down 22.2 208.9 Low 10:27:40 - 10:47:54 2361
Bishop 10:37:51 -48.4 Dark Down 23.2 208.0 Low 10:27:44 - 10:47:58 2356
CPSLO 10:37:56 -50.5 Dark Down 25.9 206.4 Low 10:27:49 - 10:48:03 2300
Beatty 10:37:45 -47.2 Dark Down 23.0 209.6 Low 10:27:38 - 10:47:52 2273
Indian Springs 10:37:41 -46.4 Dark Down 22.9 210.6 Low 10:27:34 - 10:47:48 2215
Henderson 10:37:39 -45.9 Dark Down 23.0 211.3 Low 10:27:32 - 10:47:46 2156
Wildwood 10:37:49 -49.1 Dark Down 26.2 208.5 Low 10:27:42 - 10:47:56 2153
Searchlight/Boulder City 10:37:38 -45.9 Dark Down 23.5 211.5 Low 10:27:31 - 10:47:45 2117
Laughlin/Bullhead City 10:37:37 -45.7 Dark Down 23.6 211.9 Low 10:27:30 - 10:47:44 2084
Patrick 10:37:35 -45.1 Dark Down 23.1 212.4 Low 10:27:28 - 10:47:42 2076
Niwot 10:37:17 -37.9 Dark Down 15.3 218.7 Really Low 10:27:10 - 10:47:24 2075
SwRI 10:37:17 -38.0 Dark Down 15.4 218.6 Really Low 10:27:10 - 10:47:24 2071
Kingman/Dolan Springs 10:37:35 -45.3 Dark Down 23.4 212.3 Low 10:27:28 - 10:47:42 2068
Mohave Valley 10:37:37 -45.7 Dark Down 23.8 211.9 Low 10:27:30 - 10:47:44 2066
Idyllwild 10:37:43 -47.6 Dark Down 25.7 210.3 Low 10:27:36 - 10:47:50 2064
DCO 10:37:32 -44.6 Dark Down 23.0 213.1 Low 10:27:25 - 10:47:39 2031
Lake Havasu City 10:37:35 -45.6 Dark Down 24.1 212.3 Low 10:27:28 - 10:47:42 2030
Parker 10:37:35 -45.6 Dark Down 24.4 212.4 Low 10:27:28 - 10:47:42 2005
Blythe 10:37:36 -45.8 Dark Down 24.9 212.2 Low 10:27:29 - 10:47:43 1980
Calipatria 10:37:39 -46.7 Dark Down 25.8 211.5 Low 10:27:32 - 10:47:46 1980
Yuma 10:37:35 -45.9 Dark Down 25.7 212.4 Low 10:27:28 - 10:47:42 1917
George/Scottsdale 10:37:27 -43.6 Dark Down 23.6 214.5 Low 10:27:20 - 10:47:34 1888

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 13RG98, (2020/11/25 10:40UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 15.74  68
Nihal          05:28:14.7 -20:45:36  2.8  5.12  72
PPM 248396     05:03:53.3 -24:23:19  5.8  1.65  67
PPM 248553     05:11:10.3 -24:20:57  8.1  0.44  69
PPM 248567     05:11:30.6 -23:50:04  9.2  0.18  69
13RG98         05:10:49.8 -23:55:07 15.6        69
Positions are for J2000

Event circumstances last updated at 2020/06/22 20:19:37 UT

Marc W. Buie, Southwest Research Institute

RECON