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968 Petunia (A921 WJ)
Classification: Main-belt Asteroid          SPK-ID: 2000968
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363354656656636 1.1217e-08  
a 2.864942542538347 8.6712e-09 au
q 2.474349266896012 3.0804e-08 au
i 11.59858658801304 3.303e-07 deg
node 208.8405161875813 3.7986e-06 deg
peri 297.4915906452637 9.4903e-06 deg
M 96.344499000139 7.3847e-06 deg
tp 2458922.479937190465
(2020-Mar-13.97993719)
3.6032e-05 TDB
period 1771.219160226122
4.85
8.0413e-06
2.202e-08
d
yr
n .2032498338342505 9.2275e-10 deg/d
Q 3.255535818180683 9.8534e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3491  
   data-arc span      36404 days (99.67 yr)  
   first obs. used      1921-10-25  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:47:20  

Additional Information
 Earth MOID = 1.51029 au 
 Jupiter MOID = 1.84757 au 
 T_jup = 3.256 
[ 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 10.22   n/a MPO614063  
diameter diameter 24.422 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 61.280 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2010) Minor Planet Bull. 37, 122-123.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.233   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.869   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.70 deg.
U-B UB 0.372   0.082 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.70 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

968 Petunia (A921 WJ)          Discovered 1921-Nov-24 by Reinmuth, K. at Heidelberg
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
1916-Oct-05 17:21 00:01 Jupiter 1.97493086186592 1.97493021438795 1.97493150934625 4.37952969000218 4.28047964166821 2421142.222842781 1.25958460873 115.630558266265 7.36487547841277 75.6863309741003 13297761.7606604 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
1974-Feb-11 01:53 < 00:01 Jupiter 1.95242687706202 1.95242667054528 1.95242708357886 2.17681918987833 1.96745536115226 2442089.578521364 0.635250694228779 26.6825434521385 5.41560962289753 -40.3793726963663 10088747.3369024 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
1998-Dec-02 16:46 < 00:01 Jupiter 1.84478129400846 1.84478120573647 1.84478138228055 3.41706958392169 3.27995032027729 2451150.198652314 0.236785228889994 27.2316605848054 2.68118031147375 86.5684611691204 29607554.7719942 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
2023-Aug-25 20:33 < 00:01 Jupiter 1.99477696181699 1.99477672805064 1.99477719558334 4.45644788048099 4.36012469924987 2460182.356518417 0.162264402977778 17.1628914685087 6.64265229738765 57.4509707062922 13289708.0871843 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
2081-Jan-09 11:35 < 00:01 Jupiter 1.92613193695194 1.92613155162184 1.92613232228227 2.37876252331502 2.18609352971969 2481138.982489888 0.966623157398361 43.1443797078488 4.95222865682851 -42.5569404230444 12541984.2327372 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
2105-Oct-24 10:37 00:01 Jupiter 1.84093395237231 1.84093384322503 1.84093406152063 3.58818480666097 3.45758017213995 2490191.942115922 1.19592619801067 118.205009864771 3.9661963750223 -89.2915361963135 25950335.9297517 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48
2187-Dec-08 07:51 00:02 Jupiter 1.90086048177011 1.90085961133319 1.90086135220983 2.60333888183756 2.42614391601016 2520186.827039891 2.47846501881704 131.639982310038 4.39795699296179 -57.0828427978778 15291185.4263106 T 45 CATAB v2.0g-lin.ifort 2021-Jul-08 11:48:44 2021-Jul-08 11:48

Alternate Designations
 A921 WJ = 1935 QK1 = 1948 KC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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