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2575 Bulgaria (1970 PL)
Classification: Main-belt Asteroid          SPK-ID: 2002575
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12313735656002 2.915e-08  
a 2.239973945941443 7.273e-09 au
q 1.964149475474896 6.5277e-08 au
i 4.67389772812573 4.2586e-06 deg
node 321.9695418163541 4.1566e-05 deg
peri 287.4614346215157 4.5683e-05 deg
M 255.8597170747217 2.0317e-05 deg
tp 2458954.724935330619
(2020-Apr-15.22493533)
6.9671e-05 TDB
period 1224.511525578632
3.35
5.9638e-06
1.633e-08
d
yr
n .2939947828011542 1.4319e-09 deg/d
Q 2.515798416407989 8.1686e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      34965 days (95.73 yr)  
   first obs. used      1923-08-19  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:41:29  

Additional Information
 Earth MOID = .955978 au 
 Jupiter MOID = 2.52865 au 
 T_jup = 3.621 
[ 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 12.7   n/a MPO365276  
diameter diameter 6.409 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.480 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.392   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Sr   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2575 Bulgaria (1970 PL)          Discovered 1970-Aug-04 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1970 PL = 1970 QD = 1977 RQ6 = 1980 PY = A923 PB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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