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875 Nymphe (A917 KG)
Classification: Main-belt Asteroid          SPK-ID: 2000875
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513669239052398 1.4169e-08  
a 2.552582975064128 6.6496e-09 au
q 2.166206342115785 3.5596e-08 au
i 14.56996658565368 5.5018e-07 deg
node 196.0473368973569 1.2434e-06 deg
peri 117.0449495320679 8.0698e-06 deg
M 70.35305252023721 6.8811e-06 deg
tp 2458909.395664095416
(2020-Feb-29.89566410)
2.8232e-05 TDB
period 1489.595080405433
4.08
5.8207e-06
1.594e-08
d
yr
n .2416764157827485 9.4437e-10 deg/d
Q 2.93895960801247 7.6561e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3090  
   data-arc span      37909 days (103.79 yr)  
   first obs. used      1917-05-26  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:34:13  

Additional Information
 Earth MOID = 1.19471 au 
 Jupiter MOID = 2.47981 au 
 T_jup = 3.379 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457154.5 (2015-May-12.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514196868592325 1.4194e-08  
q 2.166071173917677 3.5715e-08 au
tp 2457421.453869156670
(2016-Feb-02.95386916)
2.7829e-05 TDB
node 196.0992785798292 1.2432e-06 deg
peri 117.4742710227949 8.0725e-06 deg
i 14.57450855667409 5.5039e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3090  
   data-arc span      37909 days (103.79 yr)  
   first obs. used      1917-05-26  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:34:13  

Additional Information
 Jupiter MOID = 2.47981 au 
 T_jup = 3.379 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.014719924443159E-16 -5.0071730652411E-16 4.003435761290649E-14 -6.069169781565174E-15 3.591778630705299E-14 -3.011322370223709E-15
q -5.0071730652411E-16 1.275575432084287E-15 -1.069220273793533E-13 1.552855346689511E-14 -9.309943343826328E-14 7.676675639400697E-15
tp 4.003435761290649E-14 -1.069220273793533E-13 7.744747196971345E-10 -1.718566314418442E-12 2.155033166333604E-10 -6.974869030594745E-13
node -6.069169781565174E-15 1.552855346689511E-14 -1.718566314418442E-12 1.545485500223944E-12 -2.68174815287798E-12 5.386059752474911E-13
peri 3.591778630705299E-14 -9.309943343826328E-14 2.155033166333604E-10 -2.68174815287798E-12 6.51660224131631E-11 -1.004983159823974E-12
i -3.011322370223709E-15 7.676675639400697E-15 -6.974869030594745E-13 5.386059752474911E-13 -1.004983159823974E-12 3.029286535938106E-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 11.21   n/a E2021B10  
diameter diameter 14.107 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.618 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2004) Minor Planet Bull. 31, 19-22.]
[Carbo, L.; Green, D.; Kragh, K.; Krotz, J.; et al. (2009) Minor Planet Bull. 36, 152-157.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.223   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

875 Nymphe (A917 KG)          Discovered 1917-May-19 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A917 KG = 1926 RL = 1970 GC1 = 1971 UK4 = A917 KF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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