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7197 Pieroangela (1994 BH)
Classification: Main-belt Asteroid          SPK-ID: 2007197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2300209103716697 1.8128e-08  
a 2.623247924611649 8.5427e-09 au
q 2.019846048861884 4.6989e-08 au
i 7.200719966426957 8.9766e-07 deg
node 121.6007425456685 5.1997e-06 deg
peri 349.3897018528758 6.1175e-06 deg
M 131.0568137574254 4.746e-06 deg
tp 2458635.544113314845
(2019-Jun-01.04411331)
1.909e-05 TDB
period 1551.877490193696
4.25
7.5806e-06
2.075e-08
d
yr
n .2319770743984869 1.1332e-09 deg/d
Q 3.226649800361413 1.0508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2235  
   data-arc span      15863 days (43.43 yr)  
   first obs. used      1977-03-09  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46472  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:29:55  

Additional Information
 Earth MOID = 1.03681 au 
 Jupiter MOID = 1.90113 au 
 T_jup = 3.355 
[ 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 13.53   n/a E2021B10  
diameter diameter 5.206 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.56051 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.312   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7197 Pieroangela (1994 BH)          Discovered 1994-Jan-16 by Boattini, A., Tombelli, M. at Cima Ekar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 BH = 1977 ER 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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