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JPL Small-Body Database Browser
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1876 Napolitania (1970 BA)
Classification: Inner Main-belt Asteroid          SPK-ID: 2001876
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04783603216913793 6.1589e-08  
a 1.964383657561644 6.3478e-09 au
q 1.870415337725996 1.2068e-07 au
i 23.11057974994682 5.1009e-06 deg
node 304.4715478645813 1.2457e-05 deg
peri 243.2560491157089 4.7068e-05 deg
M 260.5484412628871 4.7271e-05 deg
tp 2458878.309433634663
(2020-Jan-29.80943363)
0.00013232 TDB
period 1005.629246826042
2.75
4.8745e-06
1.335e-08
d
yr
n .3579848151157386 1.7352e-09 deg/d
Q 2.058351977397292 6.6515e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1141  
   data-arc span      17860 days (48.90 yr)  
   first obs. used      1970-04-06  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47596  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:13:46  

Additional Information
 Earth MOID = .923954 au 
 Jupiter MOID = 3.04154 au 
 T_jup = 3.778 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO347532  
rotation period rot_per 45.63 h n/a LCDB (Rev. 2019-January); 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. (2016) Minor Planet Bull. 43, 57-65.]

1876 Napolitania (1970 BA)          Discovered 1970-Jan-31 by Kowal, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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