RECON: TNO occultation with 01KD77

Event between 01KD77 and star GA0680:31342144 with event index number of 207722

Geocentric closest approach at 2019/08/16 06:42:31 UTC

J2000 position of star is 18:43:27.7 -21:38:40
Equinox of date position of star is 18:44:34.0 -21:37:30
Stellar brightness G=15.7, use SENSEUP=128
Star is 52 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 36.5 AU from the Sun and 35.8 AU from the Earth.
The TNO is moving 16.3 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 550 seconds.
The 1-sigma cross-track error in the shadow position is 1849 km.
The sky-plane scale is 25936.2 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=461.3 km assuming a 5% albedo -- 28.4 sec chord
Diameter=188.3 km assuming a 30% albedo -- 11.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 01KD77, (2019/08/16 06:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.8 -26:28:26  0.9 30.89  81
Nunki          18:56:28.8 -26:16:14  2.0  5.38  49
28 Sgr         18:47:31.6 -22:22:12  4.9  1.00  51
PPM 268766     18:43:09.7 -21:18:09  8.5  0.47  52
PPM 268804     18:44:32.6 -21:17:56  8.9  0.33  52
01KD77         18:44:38.2 -21:37:25 15.7        51
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 1.6 sigma about the mid-time.
The median site spacing is 16.1 km RECON observability=0.7 and success probability=8.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 06:41:38 -24.2 Dark Up 15.6 203.5 Really Low 06:26:38 - 06:56:38 3254
Oroville 06:41:37 -24.8 Dark Up 16.1 203.6 Really Low 06:26:37 - 06:56:37 3227
Tonasket 06:41:37 -25.0 Dark Up 16.3 203.7 Really Low 06:26:37 - 06:56:37 3216
Okanogan 06:41:37 -25.3 Dark Up 16.7 203.6 Really Low 06:26:37 - 06:56:37 3204
Brewster 06:41:37 -25.5 Dark Up 17.0 203.4 Really Low 06:26:37 - 06:56:37 3196
Manson/Chelan 06:41:38 -25.6 Dark Up 17.3 203.1 Really Low 06:26:38 - 06:56:38 3194
Entiat 06:41:38 -25.8 Dark Up 17.5 203.1 Really Low 06:26:38 - 06:56:38 3185
Wenatchee 06:41:38 -26.0 Dark Up 17.8 203.0 Really Low 06:26:38 - 06:56:38 3175
Ellensburg 06:41:38 -26.3 Dark Up 18.2 202.8 Really Low 06:26:38 - 06:56:38 3161
Yakima 06:41:37 -26.7 Dark Up 18.6 202.9 Really Low 06:26:37 - 06:56:37 3142
Toppenish/White Swan 06:41:37 -26.9 Dark Up 18.7 203.1 Really Low 06:26:37 - 06:56:37 3129
Goldendale 06:41:38 -27.3 Dark Up 19.3 202.7 Really Low 06:26:38 - 06:56:38 3110
The Dalles 06:41:39 -27.4 Dark Up 19.7 202.4 Really Low 06:26:39 - 06:56:39 3106
Pasco 06:41:31 -27.3 Dark Up 18.5 204.2 Really Low 06:26:31 - 06:56:31 3098
George/Umatilla 06:41:31 -27.6 Dark Up 18.9 204.1 Really Low 06:26:31 - 06:56:31 3086
Maupin 06:41:37 -27.8 Dark Up 20.0 202.6 Low 06:26:37 - 06:56:37 3084
PNWRO 06:41:29 -27.6 Dark Up 18.7 204.5 Really Low 06:26:29 - 06:56:29 3082
Madras/Culver 06:41:37 -28.3 Dark Up 20.5 202.6 Low 06:26:37 - 06:56:37 3058
Sisters 06:41:38 -28.5 Dark Up 21.0 202.2 Low 06:26:38 - 06:56:38 3050
Redmond 06:41:37 -28.6 Dark Up 20.9 202.6 Low 06:26:37 - 06:56:37 3041
Bend 06:41:37 -28.8 Dark Up 21.1 202.5 Low 06:26:37 - 06:56:37 3032
Oregon Observatory 06:41:37 -28.9 Dark Up 21.3 202.4 Low 06:26:37 - 06:56:37 3026
La Pine/Gilchrist 06:41:37 -29.0 Dark Up 21.5 202.4 Low 06:26:37 - 06:56:37 3017
North Lake 06:41:34 -29.6 Dark Up 21.7 203.0 Low 06:26:34 - 06:56:34 2982
Chiloquin 06:41:37 -29.9 Dark Up 22.6 202.2 Low 06:26:37 - 06:56:37 2966
Paisley 06:41:32 -30.2 Dark Up 22.2 203.4 Low 06:26:32 - 06:56:32 2946
Klamath Falls 06:41:37 -30.3 Dark Up 22.9 202.3 Low 06:26:37 - 06:56:37 2946
Tulelake 06:41:35 -30.6 Dark Up 23.1 202.7 Low 06:26:35 - 06:56:35 2925
Lakeview 06:41:30 -30.7 Dark Up 22.6 203.7 Low 06:26:30 - 06:56:30 2915
Cedarville 06:41:28 -31.4 Dark Up 23.1 204.0 Low 06:26:28 - 06:56:28 2875
Fall River/Burney 06:41:33 -31.5 Dark Up 23.9 202.9 Low 06:26:33 - 06:56:33 2874
Susanville 06:41:29 -32.3 Dark Up 24.3 203.7 Low 06:26:29 - 06:56:29 2823
Greenville 06:41:30 -32.4 Dark Up 24.6 203.5 Low 06:26:30 - 06:56:30 2813
Gimple 06:41:29 -32.4 Dark Up 24.6 203.6 Low 06:26:29 - 06:56:29 2811
Quincy 06:41:30 -32.6 Dark Up 24.8 203.5 Low 06:26:30 - 06:56:30 2801
Portola 06:41:27 -32.9 Dark Up 24.8 204.0 Low 06:26:27 - 06:56:27 2784
Reno 06:41:24 -33.3 Dark Up 24.8 204.7 Low 06:26:24 - 06:56:24 2755
Carson City 06:41:23 -33.6 Dark Up 25.1 204.7 Low 06:26:23 - 06:56:23 2733
Gardnerville 06:41:23 -33.9 Dark Up 25.3 204.8 Low 06:26:23 - 06:56:23 2718
Yerington 06:41:20 -34.0 Dark Up 25.1 205.4 Low 06:26:20 - 06:56:20 2708
Hawthorne 06:41:17 -34.6 Dark Up 25.4 206.0 Low 06:26:17 - 06:56:17 2668
Lee Vining 06:41:18 -35.0 Dark Up 26.0 205.6 Low 06:26:18 - 06:56:18 2645
Tonopah 06:41:10 -35.5 Dark Up 25.3 207.4 Low 06:26:10 - 06:56:10 2608
Bishop 06:41:15 -35.7 Dark Up 26.3 206.4 Low 06:26:15 - 06:56:15 2591
Lone Pine 06:41:12 -36.5 Dark Up 26.9 206.9 Low 06:26:12 - 06:56:12 2536
Beatty 06:41:06 -36.7 Dark Up 26.1 208.1 Low 06:26:06 - 06:56:06 2524
CPSLO 06:41:23 -36.9 Dark Up 29.0 204.7 Low 06:26:23 - 06:56:23 2512
Indian Springs 06:41:01 -37.3 Dark Up 26.0 209.1 Low 06:26:01 - 06:56:01 2478
Niwot 06:40:23 -35.8 Dark Up 18.6 217.6 Really Low 06:25:23 - 06:55:23 2434
Henderson 06:40:57 -38.0 Dark Up 26.2 209.9 Low 06:25:57 - 06:55:57 2426
Searchlight/Boulder City 06:40:55 -38.5 Dark Up 26.7 210.1 Low 06:25:55 - 06:55:55 2387
Wildwood 06:41:12 -38.7 Dark Up 29.3 207.0 Low 06:26:12 - 06:56:12 2384
Laughlin/Bullhead City 06:40:53 -38.9 Dark Up 26.8 210.5 Low 06:25:53 - 06:55:53 2359
Patrick 06:40:50 -38.8 Dark Up 26.3 211.1 Low 06:25:50 - 06:55:50 2357
Kingman/Dolan Springs 06:40:51 -39.0 Dark Up 26.6 211.0 Low 06:25:51 - 06:55:51 2347
Mohave Valley 06:40:53 -39.1 Dark Up 27.0 210.6 Low 06:25:53 - 06:55:53 2340
DCO 06:40:47 -39.3 Dark Up 26.3 211.8 Low 06:25:47 - 06:55:47 2319
Idyllwild 06:41:02 -39.6 Dark Up 28.9 208.9 Low 06:26:02 - 06:56:02 2315
Lake Havasu City 06:40:52 -39.6 Dark Up 27.3 210.9 Low 06:25:52 - 06:55:52 2307
Parker 06:40:51 -39.9 Dark Up 27.6 211.0 Low 06:25:51 - 06:55:51 2282
Blythe 06:40:51 -40.3 Dark Up 28.2 210.9 Low 06:25:51 - 06:55:51 2254
Calipatria 06:40:55 -40.5 Dark Up 29.0 210.2 Low 06:25:55 - 06:55:55 2243
Yuma 06:40:51 -41.2 Dark Up 29.0 211.1 Low 06:25:51 - 06:55:51 2191

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 01KD77, (2019/08/16 06:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 30.89  81
Nunki          18:55:15.9 -26:17:49  2.0  5.38  49
28 Sgr         18:46:20.7 -22:23:32  4.9  1.00  51
PPM 268766     18:41:59.3 -21:19:21  8.5  0.47  52
PPM 268804     18:43:22.3 -21:19:11  8.9  0.33  52
01KD77         18:43:27.7 -21:38:40 15.7        52
Positions are for J2000

Event circumstances last updated at 2018/06/12 02:27:33 UT

Marc W. Buie, Southwest Research Institute

RECON