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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363354642390277 1.1187e-08  
a 2.864942540588311 8.5416e-09 au
q 2.474349269299064 3.078e-08 au
i 11.59858661554269 3.2999e-07 deg
node 208.8405161664853 3.7908e-06 deg
peri 297.4915924148931 9.4327e-06 deg
M 96.34449806246357 7.3617e-06 deg
tp 2458922.479942287844
(2020-Mar-13.97994229)
3.5888e-05 TDB
period 1771.21915841774
4.85
7.9212e-06
2.169e-08
d
yr
n .2032498340417649 9.0896e-10 deg/d
Q 3.255535811877558 9.7062e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3605  
   data-arc span      36448 days (99.79 yr)  
   first obs. used      1921-10-25  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:12:10  

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 1.97493089313603 1.974930250358 1.9749315359163 4.37952976424896 4.28047971921951 2421142.222895990 1.24340005100021 114.239509810326 7.30352997833061 75.614041280315 13408132.8433937 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
1974-Feb-11 01:53 < 00:01 Jupiter 1.95242687131665 1.95242666544905 1.95242707718425 2.17681928423658 1.96745546490263 2442089.578550916 0.628838212267838 26.4651705656146 5.4075235802845 -40.3167722394189 10106807.8581318 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
1998-Dec-02 16:46 < 00:01 Jupiter 1.84478129158895 1.84478120341554 1.84478137976248 3.41706954512334 3.27995027967338 2451150.198654217 0.235591976153029 27.2044825921292 2.66187932091947 86.539557269738 29717622.9381108 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
2023-Aug-25 20:33 < 00:01 Jupiter 1.99477694450829 1.99477671345276 1.99477717556383 4.45644778175078 4.36012459749349 2460182.356503959 0.159073206175959 16.8363366881718 6.63568369443914 57.291380715325 13300561.1645508 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
2081-Jan-09 11:35 < 00:01 Jupiter 1.92613196839121 1.92613158963344 1.9261323471492 2.37876236112788 2.18609335652179 2481138.982431856 0.950205581244329 42.3389155271146 4.95018800541022 -42.5379348551907 12559759.5426923 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
2105-Oct-24 10:37 00:01 Jupiter 1.8409339419238 1.84093383506207 1.84093404878657 3.58818466333157 3.45758002264124 2490191.942056582 1.17665935806079 116.132138845674 3.94100562713921 -89.2513711437088 26096105.2179039 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13
2187-Dec-08 07:51 00:02 Jupiter 1.90086055062142 1.90085969396426 1.90086140728127 2.60333859277885 2.42614361249244 2520186.826916072 2.44018553545103 129.511105338439 4.39711007639915 -57.0781950310605 15311522.9783035 T 47 CATAB v2.0g-lin.ifort 2021-Aug-25 07:13:40 2021-Aug-25 07:13

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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