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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364702824081375 1.1252e-08  
a 2.865058956331926 8.926e-09 au
q 2.474063551445344 3.082e-08 au
i 11.59850772239037 3.3066e-07 deg
node 208.8408718429461 3.8125e-06 deg
peri 297.4956525796925 9.5542e-06 deg
M 56.48913388177537 7.3772e-06 deg
tp 2458922.553514574144
(2020-Mar-14.05351457)
3.6167e-05 TDB
period 1771.327118640599
4.85
8.2777e-06
2.266e-08
d
yr
n .2032374462128041 9.4977e-10 deg/d
Q 3.256054361218507 1.0144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3316  
   data-arc span      36308 days (99.41 yr)  
   first obs. used      1921-10-25  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:03:02  

Additional Information
 Earth MOID = 1.5091 au 
 Jupiter MOID = 1.8479 au 
 T_jup = 3.256 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456671.5 (2014-Jan-14.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376438258768608 1.1095e-08  
q 2.470159815981089 3.032e-08 au
tp 2457153.609861674997
(2015-May-11.10986168)
3.6208e-05 TDB
node 208.9249420048965 3.8146e-06 deg
peri 298.1032765142914 9.5395e-06 deg
i 11.5946253229882 3.3071e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3316  
   data-arc span      36308 days (99.41 yr)  
   first obs. used      1921-10-25  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:03:02  

Additional Information
 Jupiter MOID = 1.8479 au 
 T_jup = 3.256 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.231069218057976E-16 -3.265160985207526E-16 -2.930596235274589E-13 1.026356606467503E-14 -8.155037163584179E-14 -1.019723047983757E-15
q -3.265160985207526E-16 9.193144295601605E-16 7.963804490698331E-13 -3.047894340618167E-14 2.239086309533517E-13 2.796630969008989E-15
tp -2.930596235274589E-13 7.963804490698331E-13 1.310990904359156E-9 7.285058897185116E-12 3.181620296993237E-10 4.18944028010282E-12
node 1.026356606467503E-14 -3.047894340618167E-14 7.285058897185116E-12 1.455113130454637E-11 -1.225232718323782E-11 8.062511171272332E-14
peri -8.155037163584179E-14 2.239086309533517E-13 3.181620296993237E-10 -1.225232718323782E-11 9.100293105090838E-11 9.366870398921589E-13
i -1.019723047983757E-15 2.796630969008989E-15 4.18944028010282E-12 8.062511171272332E-14 9.366870398921589E-13 1.09370435927555E-13

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 10.23   n/a E2021B10  
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 1.9749308753966 1.97493022047835 1.97493153031731 4.37952967798215 4.2804796300565 2421142.222858562 1.28423510519891 117.754522623863 7.44185309779023 75.7850390625992 13160649.0837284 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
1974-Feb-11 01:53 < 00:01 Jupiter 1.95242687330703 1.95242666569323 1.95242708092094 2.17681923408141 1.96745540963507 2442089.578538374 0.645166258830678 27.0192668600361 5.42839402075528 -40.4675223300546 10065182.8268312 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
1998-Dec-02 16:46 < 00:01 Jupiter 1.84478129441095 1.84478120602236 1.84478138279966 3.41706947087528 3.27995020253549 2451150.198645853 0.238723570375377 27.2817943266102 2.70885014807968 86.6166645654675 29445380.4911315 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
2023-Aug-25 20:33 < 00:01 Jupiter 1.99477695769405 1.994776720227 1.99477719516111 4.45644789256694 4.36012471140153 2460182.356518627 0.166800022390316 17.6285490693574 6.65395686975627 57.7117642893411 13277557.0162659 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
2081-Jan-09 11:35 < 00:01 Jupiter 1.92613194855762 1.92613155359213 1.92613234352332 2.3787625171422 2.1860935242149 2481138.982477338 0.991061621325413 44.3404819252532 4.95585855233816 -42.5858014798072 12516489.6053749 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
2105-Oct-24 10:37 00:01 Jupiter 1.84093394965596 1.84093383727662 1.84093406203656 3.58818467494875 3.45758003525616 2490191.942085769 1.22471063818058 121.287624189101 3.99715216995768 -89.344299355377 25762900.6472619 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04
2187-Dec-08 07:51 00:03 Jupiter 1.90086050960949 1.90085961863825 1.90086140058364 2.60333882579399 2.42614385856332 2520186.826998614 2.53589559003688 134.829451807545 4.39973013770402 -57.0906190558372 15263735.3042703 T 43 CATAB v2.0g-lin.ifort 2021-May-03 19:04:27 2021-May-03 19:04

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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