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914 Palisana (A919 NC)
Classification: Main-belt Asteroid          SPK-ID: 2000914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145141566549827 1.5633e-08  
a 2.458320184653746 4.4951e-09 au
q 1.930975703454826 4.0437e-08 au
i 25.20530134868457 1.1338e-06 deg
node 255.7925943512797 1.1579e-06 deg
peri 49.01754113997609 5.2155e-06 deg
M 170.7553453148067 3.5649e-06 deg
tp 2458728.728462129821
(2019-Sep-02.22846213)
1.3483e-05 TDB
period 1407.849067272617
3.85
3.8614e-06
1.057e-08
d
yr
n .2557092293262778 7.0136e-10 deg/d
Q 2.985664665852665 5.4594e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2861  
   data-arc span      32710 days (89.56 yr)  
   first obs. used      1931-10-13  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:08:20  

Additional Information
 Earth MOID = .978156 au 
 Jupiter MOID = 2.31219 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457162.5 (2015-May-20.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2146421215604367 1.5642e-08  
q 1.930125936258068 4.0481e-08 au
tp 2457322.244934913825
(2015-Oct-26.74493491)
1.3352e-05 TDB
node 255.8061183831494 1.1581e-06 deg
peri 49.16694394539709 5.2163e-06 deg
i 25.20589800100395 1.1339e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2861  
   data-arc span      32710 days (89.56 yr)  
   first obs. used      1931-10-13  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:08:20  

Additional Information
 Jupiter MOID = 2.31219 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.446680697181995E-16 -6.31473470670863E-16 3.502625515063825E-14 -1.344983247908612E-16 3.618471073590683E-14 -7.206112657327093E-15
q -6.31473470670863E-16 1.638685993483557E-15 -9.130030117316894E-14 -1.340023724474896E-16 -9.390823354748168E-14 1.867031824345776E-14
tp 3.502625515063825E-14 -9.130030117316894E-14 1.782759294656915E-10 -2.228656675208798E-12 6.623120016869682E-11 8.543170821171231E-12
node -1.344983247908612E-16 -1.340023724474896E-16 -2.228656675208798E-12 1.341258869872113E-12 -1.317154226323576E-12 5.935280893441577E-14
peri 3.618471073590683E-14 -9.390823354748168E-14 6.623120016869682E-11 -1.317154226323576E-12 2.720957791001397E-11 2.269268866617473E-12
i -7.206112657327093E-15 1.867031824345776E-14 8.543170821171231E-12 5.935280893441577E-14 2.269268866617473E-12 1.285718483352157E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.18   n/a E2021B10 IRAS observations used: 12
diameter diameter 76.190 km 0.486 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.68113 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.]
geometric albedo albedo 0.095   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.741   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=17.18, mean=20.88, max.=25.76) deg.
U-B UB 0.368   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=17.18, mean=20.88, max.=25.76) deg.
Tholen spectral type spec_T CU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

914 Palisana (A919 NC)          Discovered 1919-Jul-04 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A919 NC = A904 PB = A916 WC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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