RECON: TNO occultation with 533704

Event between (533704) 14MZ69 and star GA0800:21871474 with event index number of 2244314

Geocentric closest approach at 2023/08/04 11:13:51 UTC

J2000 position of star is 23:37:11.0 -09:53:45
Equinox of date position of star is 23:38:18.6 -09:46:30
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 4 degrees from the moon. Moon is 89% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 42.7 AU from the Sun and 41.9 AU from the Earth.
The TNO is moving 18.3 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 147 seconds.
The 1-sigma cross-track error in the shadow position is 2209 km.
The sky-plane scale is 30412.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=348.3 km assuming a 5% albedo -- 19.0 sec chord
Diameter=142.2 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 533704, (2023/08/04 11:13UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:56.9 -29:29:48  1.2 21.78  24
Diphda         00:44:46.3 -17:51:27  2.0 18.01  21
PPM 241961     23:42:22.1 -11:32:59  5.9  2.03   6
PPM 207761     23:38:54.8 -09:50:40  8.1  0.15   4
533704         23:38:24.1 -09:45:55 16.6         4
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 24.8 km RECON observability=0.7 and success probability=5.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 11:11:22 -14.0 AT Up 31.5 183.3 Up 10:58:37 - 11:24:08 -3544
Clarence Fulton 11:11:07 -10.9 NT Up 29.6 187.9 Low 10:58:21 - 11:23:52 -3590
Peachland 11:11:08 -11.5 NT Up 30.1 187.4 Up 10:58:22 - 11:23:53 -3602
Kelowna 11:11:07 -11.3 NT Up 29.9 187.7 Low 10:58:21 - 11:23:52 -3606
Summerland 11:11:08 -11.5 NT Up 30.2 187.5 Up 10:58:22 - 11:23:53 -3613
Penticton 11:11:08 -11.5 NT Up 30.3 187.6 Up 10:58:22 - 11:23:53 -3620
Oliver 11:11:08 -11.8 NT Up 30.6 187.7 Up 10:58:22 - 11:23:53 -3640
Anarchist Mountain Observatory 11:11:08 -11.8 NT Up 30.8 187.9 Up 10:58:22 - 11:23:53 -3655
Tonasket 11:11:08 -12.0 AT Up 31.1 187.8 Up 10:58:22 - 11:23:53 -3671
Okanogan 11:11:09 -12.4 AT Up 31.4 187.7 Up 10:58:23 - 11:23:54 -3684
Manson/Chelan 11:11:11 -13.0 AT Up 32.0 187.1 Up 10:58:26 - 11:23:57 -3692
Brewster 11:11:10 -12.6 AT Up 31.7 187.5 Up 10:58:24 - 11:23:55 -3693
Wenatchee 11:11:12 -13.4 AT Up 32.5 186.9 Up 10:58:27 - 11:23:58 -3713
Ellensburg 11:11:14 -13.8 AT Up 32.9 186.7 Up 10:58:28 - 11:23:59 -3729
Yakima 11:11:15 -14.1 AT Up 33.3 186.7 Up 10:58:29 - 11:24:00 -3752
Toppenish/White Swan 11:11:12 -14.1 AT Up 33.5 186.9 Up 10:58:27 - 11:23:58 -3771
Goldendale 11:11:16 -14.7 AT Up 34.1 186.5 Up 10:58:30 - 11:24:01 -3788
The Dalles 11:11:18 -15.1 AT Up 34.3 186.1 Up 10:58:33 - 11:24:04 -3788
Maupin 11:11:19 -15.3 AT Up 34.7 186.3 Up 10:58:33 - 11:24:04 -3817
Pasco 11:11:09 -13.6 AT Up 33.5 188.4 Up 10:58:24 - 11:23:55 -3824
PNWRO 11:11:09 -13.7 AT Up 33.7 188.7 Up 10:58:24 - 11:23:55 -3847
Sisters 11:11:20 -16.2 AT Up 35.6 185.7 Up 10:58:35 - 11:24:06 -3851
Redmond 11:11:19 -16.0 AT Up 35.6 186.2 Up 10:58:34 - 11:24:05 -3868
Bend 11:11:20 -16.2 AT Up 35.9 186.1 Up 10:58:35 - 11:24:06 -3876
Oregon Observatory 11:11:21 -16.4 AT Up 36.0 185.9 Up 10:58:35 - 11:24:06 -3881
La Pine/Gilchrist 11:11:21 -16.6 AT Up 36.2 185.9 Up 10:58:35 - 11:24:06 -3891
North Lake 11:11:19 -16.6 AT Up 36.6 186.6 Up 10:58:34 - 11:24:05 -3941
Chiloquin 11:11:24 -17.6 AT Up 37.4 185.5 Up 10:58:38 - 11:24:09 -3947
Klamath Falls 11:11:24 -17.8 AT Up 37.7 185.7 Up 10:58:38 - 11:24:09 -3972
Paisley 11:11:20 -16.8 AT Up 37.1 187.1 Up 10:58:34 - 11:24:05 -3990
Lakeview 11:11:19 -17.0 AT Up 37.6 187.4 Up 10:58:33 - 11:24:04 -4030
Fall River/Burney 11:11:24 -18.4 Dark Up 38.9 186.2 Up 10:58:39 - 11:24:10 -4063
Cedarville 11:11:20 -17.4 AT Up 38.3 187.7 Up 10:58:34 - 11:24:05 -4079
Susanville 11:11:21 -18.4 Dark Up 39.4 187.2 Up 10:58:35 - 11:24:06 -4134
Greenville 11:11:24 -18.8 Dark Up 39.7 186.9 Up 10:58:38 - 11:24:09 -4140
Gimple 11:11:23 -18.7 Dark Up 39.7 187.0 Up 10:58:38 - 11:24:09 -4144
Quincy 11:11:23 -18.9 Dark Up 39.9 186.9 Up 10:58:38 - 11:24:09 -4154
Portola 11:11:23 -18.7 Dark Up 40.0 187.5 Up 10:58:37 - 11:24:08 -4181
Reno 11:11:19 -18.6 Dark Up 40.2 188.4 Up 10:58:34 - 11:24:05 -4225
Carson City 11:11:20 -18.8 Dark Up 40.5 188.4 Up 10:58:35 - 11:24:06 -4251
Gardnerville 11:11:20 -18.9 Dark Up 40.8 188.5 Up 10:58:34 - 11:24:05 -4269
Yerington 11:11:18 -18.6 Dark Up 40.7 189.3 Up 10:58:32 - 11:24:03 -4290
Hawthorne 11:11:16 -18.6 Dark Up 41.1 190.0 Up 10:58:31 - 11:24:02 -4344
Lee Vining 11:11:21 -19.2 Dark Up 41.7 189.5 Up 10:58:35 - 11:24:06 -4363
Tonopah 11:11:12 -18.1 Dark Up 41.3 191.9 Up 10:58:27 - 11:23:58 -4435
Bishop 11:11:18 -19.2 Dark Up 42.2 190.5 Up 10:58:33 - 11:24:04 -4436
CPSLO 11:11:29 -21.9 Dark Up 44.5 187.9 Up 10:58:44 - 11:24:15 -4490
Beatty 11:11:11 -18.5 Dark Up 42.4 192.7 Up 10:58:26 - 11:23:57 -4538
Indian Springs 11:11:06 -18.1 Dark Up 42.5 194.2 Up 10:58:21 - 11:23:52 -4608
Wildwood 11:11:22 -21.5 Dark Up 45.4 190.9 Up 10:58:37 - 11:24:08 -4667
Henderson 11:11:05 -18.0 AT Up 42.9 195.2 Up 10:58:19 - 11:23:50 -4677
Laughlin/Bullhead City 11:11:04 -18.3 Dark Up 43.6 196.0 Up 10:58:18 - 11:23:49 -4761
Dunrhomin 11:10:23 -9.4 NT Up 36.3 205.8 Up 10:57:37 - 11:23:08 -4770
Patrick 11:11:00 -17.7 AT Up 43.2 196.8 Up 10:58:15 - 11:23:46 -4772
Idyllwild 11:11:15 -20.5 Dark Up 45.4 193.5 Up 10:58:30 - 11:24:01 -4776
Kingman/Dolan Springs 11:11:03 -17.9 AT Up 43.5 196.6 Up 10:58:17 - 11:23:48 -4781
Mohave Valley 11:11:05 -18.4 Dark Up 43.9 196.0 Up 10:58:20 - 11:23:51 -4782
Lake Havasu City 11:11:05 -18.5 Dark Up 44.2 196.5 Up 10:58:20 - 11:23:51 -4823
Parker 11:11:05 -18.7 Dark Up 44.5 196.6 Up 10:58:20 - 11:23:51 -4851
Calipatria 11:11:12 -20.1 Dark Up 45.8 195.3 Up 10:58:26 - 11:23:57 -4876
Blythe 11:11:05 -19.2 Dark Up 45.1 196.4 Up 10:58:20 - 11:23:51 -4879
Yuma 11:11:09 -19.8 Dark Up 46.0 196.6 Up 10:58:23 - 11:23:54 -4949
George/Scottsdale 11:10:54 -17.4 AT Up 44.3 199.9 Up 10:58:09 - 11:23:40 -4992

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 533704, (2023/08/04 11:13UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 21.78  24
Diphda         00:43:35.7 -17:59:11  2.0 18.01  21
PPM 241961     23:41:09.0 -11:40:50  5.9  2.03   6
PPM 207761     23:37:41.7 -09:58:30  8.1  0.15   4
533704         23:37:11.0 -09:53:45 16.6         4
Positions are for J2000

Event circumstances last updated at 2021/10/25 23:33:59 UT

Marc W. Buie, Southwest Research Institute

RECON