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JPL Small-Body Database Browser
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66193 (1999 AF22)
Classification: Main-belt Asteroid          SPK-ID: 2066193
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666200125114752 3.3512e-08  
a 2.633230077225832 1.1342e-08 au
q 2.194481248812871 8.6727e-08 au
i 4.830116122887093 4.0785e-06 deg
node 241.2178597808436 4.5019e-05 deg
peri 141.5789031741197 4.699e-05 deg
M 75.86153067956832 1.2947e-05 deg
tp 2458671.609947618607
(2019-Jul-07.10994762)
5.555e-05 TDB
period 1560.743868422763
4.27
1.0083e-05
2.761e-08
d
yr
n .2306592435079077 1.4902e-09 deg/d
Q 3.071978905638793 1.3231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1118  
   data-arc span      11057 days (30.27 yr)  
   first obs. used      1989-10-23  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:52:33  

Additional Information
 Earth MOID = 1.20054 au 
 Jupiter MOID = 2.39448 au 
 T_jup = 3.374 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO453057  
diameter diameter 2.733 km 0.780 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.00 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D (2011) Minor Planet Bull. 38, 25-31.]
geometric albedo albedo 0.342   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66193 (1999 AF22)          Discovered 1999-Jan-13 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Aug-29 16:59 < 00:01 Thisb 0.035595208095612 0.0355843360816322 0.035606112144986 3.44228810886348 3.44228805321722 2416356.207754340 0.578061608078919 1774.93002976848 51.0398779388577 72.2825123203893 99309.308041015 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:52:52 2020-Feb-23 14:52
1912-Feb-13 23:38 00:05 Eunom 0.029273907724742 0.0292709690610881 0.0292768786262857 3.35627278856792 3.35627264569302 2419446.484375602 5.0132795663912 1580.49146526441 34.5382404446136 -84.8089940659855 126088.674995484 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:52:52 2020-Feb-23 14:52
2110-Nov-14 15:28 00:05 Hygie 0.0476905231988472 0.0476799482475896 0.0477011087052088 3.95123493071167 3.95123472567218 2492039.144207328 5.01127014237587 1240.78051283347 56.4059663757395 64.9958140299687 114442.901790949 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:52:52 2020-Feb-23 14:52
2198-Jul-21 23:12 < 00:01 Thisb 0.0202823020999197 0.0202318783809763 0.0203327944559079 3.68749884861231 3.68749875744784 2524065.466487082 0.838808777865073 3127.75602530473 48.5554295485455 -36.492261728821 37144.9869511091 T 25 CATAB v2.0f-lin.ifort 2020-Feb-23 14:52:52 2020-Feb-23 14:52

Alternate Designations
 1999 AF22 = 1989 UO8 = 2002 YN12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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