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16865 (1998 AQ)
Classification: Main-belt Asteroid          SPK-ID: 2016865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322924448822321 3.6105e-08  
a 3.175293265345534 1.9451e-08 au
q 2.755225956054887 1.1876e-07 au
i 22.77570673829684 4.6279e-06 deg
node 130.5022127215275 9.978e-06 deg
peri 77.52403510848447 2.0916e-05 deg
M 355.2667028801011 1.7053e-05 deg
tp 2459423.672866586537
(2021-Jul-28.17286659)
9.7925e-05 TDB
period 2066.684537936257
5.66
1.899e-05
5.199e-08
d
yr
n .1741920420808333 1.6006e-09 deg/d
Q 3.59536057463618 2.2024e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1765  
   data-arc span      20090 days (55.00 yr)  
   first obs. used      1966-08-08  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:47:36  

Additional Information
 Earth MOID = 1.86017 au 
 Jupiter MOID = 1.72003 au 
 T_jup = 3.067 
[ 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 13.45   n/a MPO636317  
diameter diameter 9.855 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16865 (1998 AQ)          Discovered 1998-Jan-05 by Kobayashi, T. at Oizumi
Reference: 20000913/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
1927-Jul-27 08:46 00:02 Jupiter 1.82634067870021 1.82633945322025 1.82634190419823 5.34220376557532 5.25467207631576 2425088.865229460 2.17263215447063 329.985821948011 27.1532753875898 79.9258278021086 2788787.57653748 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47
1938-Jul-16 07:18 00:02 Jupiter 1.79000816584185 1.79000743568493 1.79000889600926 6.18927143917355 6.1123392737921 2429095.804101787 1.66360270064433 291.919761974591 23.5127843494521 -84.7570737767944 4130990.71961367 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47
2046-Jul-19 10:14 00:01 Jupiter 1.95160041285365 1.95159957848878 1.95160124721995 4.58312239847976 4.48742490686858 2468545.926402923 1.19214196943481 134.993343943165 33.1716385296605 77.2495484765103 1743192.59773278 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47
2057-Jun-11 02:58 00:01 Jupiter 1.77924793116328 1.7792474312664 1.77924843106118 5.96326529409751 5.88289214615753 2472525.623475182 1.17711123304201 221.468661342281 23.1097863324352 -88.1952619932703 3818516.90465713 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47
2176-May-04 20:35 00:04 Jupiter 1.82075944714255 1.82075841910323 1.820760475263 5.63628035452123 5.55312979363296 2515952.357968474 4.14306207657736 703.903888855236 24.8429485543545 85.9678240509161 3271309.07308061 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47
2187-Apr-22 13:12 00:04 Jupiter 1.9103044246606 1.91030162811097 1.91030722129167 6.47421893220387 6.40536630932978 2519957.050044911 4.31746787465483 651.964064777282 26.0947435700306 -78.0455842473631 4887149.86531551 T 36 CATAB v2.0g-lin.ifort 2021-Aug-24 21:47:56 2021-Aug-24 21:47

Alternate Designations
 1998 AQ = 1966 PW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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