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3772 Piaf (1982 UR7)
Classification: Main-belt Asteroid          SPK-ID: 2003772
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 .05965714116785375 3.3915e-08  
a 3.023669061529342 1.4974e-08 au
q 2.843285609480815 1.029e-07 au
i 11.00718385108071 3.556e-06 deg
node 101.3178851568324 2.1496e-05 deg
peri 198.5567065467955 4.2085e-05 deg
M 240.1685104358414 3.7935e-05 deg
tp 2460035.746366632561
(2023-Apr-01.24636663)
0.00020348 TDB
period 1920.435878955754
5.26
1.4266e-05
3.906e-08
d
yr
n .1874574433569486 1.3925e-09 deg/d
Q 3.20405251357787 1.5868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3286  
   data-arc span      28573 days (78.23 yr)  
   first obs. used      1943-04-06  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:42:39  

Additional Information
 Earth MOID = 1.82903 au 
 Jupiter MOID = 1.95405 au 
 T_jup = 3.215 
[ 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 11.37   n/a MPO614063  
diameter diameter 18.984 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.376 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.181   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3772 Piaf (1982 UR7)          Discovered 1982-Oct-21 by Karachkina, L. G. at Nauchnyj
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
1978-Mar-25 18:40 < 00:01 Jupiter 1.97700471519824 1.97700438222262 1.97700504817409 3.9383835041141 3.82805304002044 2443593.277784170 0.804258515124703 70.4687079626158 12.4471815927983 -83.0653712069731 4679415.28824933 T 47 CATAB v2.0g-lin.ifort 2021-Jul-07 22:43:23 2021-Jul-07 22:43
2025-May-24 13:19 < 00:01 Jupiter 1.95764889264918 1.9576486088074 1.95764917649097 3.90045853324387 3.78790576213137 2460820.055125807 0.256867147941848 56.8637027170457 12.2152288301088 -87.5610994775699 4996679.78284035 T 47 CATAB v2.0g-lin.ifort 2021-Jul-07 22:43:23 2021-Jul-07 22:43
2072-Jul-23 00:38 00:01 Jupiter 1.94574889524261 1.9457486023766 1.94574918810862 3.85063572001806 3.73587424457282 2478046.526438504 1.23858715162904 71.9618857803611 12.8754063826223 -89.5131208499619 4735602.15609168 T 47 CATAB v2.0g-lin.ifort 2021-Jul-07 22:43:23 2021-Jul-07 22:43
2119-Sep-21 02:58 00:02 Jupiter 1.94810888843128 1.94810853921027 1.9481092376523 3.80005252616994 3.68385868906256 2495271.623746148 2.27914483380227 67.7772089525412 16.308257623975 86.576448031519 4617669.94494184 T 47 CATAB v2.0g-lin.ifort 2021-Jul-07 22:43:23 2021-Jul-07 22:43
2166-Nov-17 20:27 00:03 Jupiter 1.96558698520456 1.96558642642929 1.96558754398005 3.76663065553141 3.65043210068363 2512496.352051859 3.3517894348343 75.1587967316793 25.039306209597 -78.5066894194431 4780213.92509112 T 47 CATAB v2.0g-lin.ifort 2021-Jul-07 22:43:23 2021-Jul-07 22:43

Alternate Designations
 1982 UR7 = 1943 GN = 1950 TR2 = 1958 DR = 1969 FJ = 1972 XK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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