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848 Inna (A915 RQ)
Classification: Main-belt Asteroid          SPK-ID: 2000848
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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627583162749083 3.0208e-08  
a 3.111483491662799 1.1569e-08 au
q 2.605063677442589 9.2879e-08 au
i 1.05349213048653 3.5155e-06 deg
node 207.7922017463389 0.00017093 deg
peri 125.5594850009704 0.00017121 deg
M 127.5343317130459 1.0021e-05 deg
tp 2458686.310432115886
(2019-Jul-21.81043212)
5.5529e-05 TDB
period 2004.701330254651
5.49
1.1181e-05
3.061e-08
d
yr
n .1795778725573402 1.0016e-09 deg/d
Q 3.617903305883009 1.3452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3826  
   data-arc span      42131 days (115.35 yr)  
   first obs. used      1905-12-27  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:38:09  

Additional Information
 Earth MOID = 1.59429 au 
 Jupiter MOID = 1.75478 au 
 T_jup = 3.198 
[ 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 11.35   n/a E2021B10  
diameter diameter 33.027 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 45.479 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.069   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

848 Inna (A915 RQ)          Discovered 1915-Sep-05 by Neujmin, G. at Simeis
Independent discovery Sept. 9 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1956-Oct-15 21:15 < 00:01 Jupiter 1.83450967152164 1.83450924684189 1.83451009620119 1.91053963972606 1.65128121996067 2435762.385645939 0.990975868437416 57.1909760597369 12.4700884768569 89.5830211195427 2805336.44472997 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
1966-Oct-26 13:37 < 00:01 Jupiter 1.78146821832916 1.78146794553698 1.78146849112135 2.11233548024693 1.8737755623839 2439425.067573478 0.812344029491234 38.9321126343139 9.57564751705165 -88.9346285463202 3597341.35953689 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2028-Jan-11 18:12 < 00:01 Jupiter 1.8326462308868 1.83264592431511 1.83264653745838 1.90124889650133 1.64023668114546 2461782.258344595 0.327461176100145 45.6728282437907 12.7352859577978 -87.7799873179532 3407581.99702288 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2038-Jan-22 03:57 < 00:01 Jupiter 1.78651268895739 1.78651235732369 1.78651302059099 2.11482917988072 1.87730157720775 2465445.664459842 0.509085232021833 38.7912176143662 7.64303216876369 89.6127615131174 3152036.33951068 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2099-Apr-08 17:42 00:02 Jupiter 1.83092742969396 1.830926963664 1.83092789572391 1.89254038207822 1.62986819685813 2487802.237549929 1.56643454662033 80.5834023304012 14.0894376554563 87.7306471581908 2765335.24230221 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2109-Apr-19 15:02 00:02 Jupiter 1.79026796394972 1.7902674615764 1.79026846632283 2.11668556559267 1.87992169274744 2491465.126371056 1.78041078878357 47.9390228902643 12.9884925074561 -80.8542256818193 2183046.88405816 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2170-Jul-04 18:14 00:03 Jupiter 1.82942947028057 1.82942875073146 1.82943018983113 1.88669722620328 1.62284628593991 2513821.259798062 2.83207170019927 129.821297641495 14.9812980949126 86.0112001235432 2606984.7698354 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38
2180-Jul-15 13:48 00:03 Jupiter 1.79933472753748 1.79933402708271 1.79933542799205 2.12953575014342 1.89563667908259 2517485.074842482 3.05955109621461 67.8025375664893 14.5831444535095 -74.61754851984 1994477.37058627 T 47 CATAB v2.0g-lin.ifort 2021-Jul-08 11:38:46 2021-Jul-08 11:38

Alternate Designations
 A915 RQ = 1932 WJ = 1934 AC = 1934 CM1 = 1934 CV = 1937 RD = 1959 TJ = A905 YA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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