Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
225 Henrietta (A882 HA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2636020182250864 2.7181e-08  
a 3.392071755796187 7.7234e-09 au
q 2.497914795004 9.2363e-08 au
i 20.8548601378636 3.2993e-06 deg
node 197.0489164396748 8.834e-06 deg
peri 103.7452723301908 1.1005e-05 deg
M 20.62328670287115 6.3783e-06 deg
tp 2458869.777197007939
(2020-Jan-21.27719701)
4.0158e-05 TDB
period 2281.89666153408
6.25
7.7935e-06
2.134e-08
d
yr
n .1577634982637549 5.3882e-10 deg/d
Q 4.286228716588375 9.7593e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3379  
   data-arc span      45829 days (125.47 yr)  
   first obs. used      1895-05-11  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:02  

Additional Information
 Earth MOID = 1.58162 au 
 Jupiter MOID = 1.70145 au 
 T_jup = 2.990 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455527.5 (2010-Nov-27.0) TDB
Reference: JPL 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2651017098041819 2.7053e-08  
q 2.490917539899042 9.1866e-08 au
tp 2456593.502995455546
(2013-Oct-28.00299546)
3.6435e-05 TDB
node 197.1210777119625 8.8284e-06 deg
peri 104.4767376437416 1.0975e-05 deg
i 20.87319135294198 3.3016e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3379  
   data-arc span      45829 days (125.47 yr)  
   first obs. used      1895-05-11  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:02  

Additional Information
 Jupiter MOID = 1.70145 au 
 T_jup = 2.990 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.318862776749892E-16 -2.480866724109508E-15 1.793594269312132E-13 -4.765443727903067E-15 2.473226921717488E-14 -1.862040165359848E-15
q -2.480866724109508E-15 8.439293166876394E-15 -5.330975811104712E-13 1.52046322243158E-14 -7.427946268971328E-14 5.172544524312584E-15
tp 1.793594269312132E-13 -5.330975811104712E-13 1.32747579328971E-9 -7.798398077414657E-12 2.484625839833826E-10 -6.654594518393397E-12
node -4.765443727903067E-15 1.52046322243158E-14 -7.798398077414657E-12 7.794139073336805E-11 -7.398372496337559E-11 -5.471470057729528E-12
peri 2.473226921717488E-14 -7.427946268971328E-14 2.484625839833826E-10 -7.398372496337559E-11 1.204420140861309E-10 3.999752604196673E-12
i -1.862040165359848E-15 5.172544524312584E-15 -6.654594518393397E-12 -5.471470057729528E-12 3.999752604196673E-12 1.090035533008365E-11

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 8.8   n/a MPO492751 IRAS observations used: 17
diameter diameter 95.934 km 1.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.3556 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Michalowski, T.; Pych, W.; Berthier, J.; Kryszczynska, A.; et al. (2000) Astron. Astrophys. Suppl. Ser. 146, 471-479.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2003) Abstracts of Photometry and Polarimetry of Asteroids: Impact on Collaboration, Kharkiv, 9-10.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.]
[Moravec, P.; Cochren, J.; Gerhardt, M.; Harris, A.; et al. (2012) Minor Planet Bull. 39, 213-216.]
[Pilcher, F. (2012) Minor Planet Bull. 39, 171-173.]
[Garceran, A.C. (2013) Posting on CALL web site. http://www.MinorPlanet.info/call.html]
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.648   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.40, mean=10.45, max.=16.51) deg.
U-B UB 0.282   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.40, mean=10.45, max.=16.51) deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

225 Henrietta (A882 HA)          Discovered 1882-Apr-19 by Palisa, J. at Vienna
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
1928-May-01 11:30 00:01 Jupiter 1.93574251453876 1.93574122742494 1.9357438016583 6.62452116564876 6.55813548362405 2425367.979002197 1.26230656195846 185.60937000319 18.3724381955802 -70.8908668236386 4849016.46758986 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
1941-Feb-03 20:29 < 00:01 Jupiter 1.63665887377792 1.63665833746461 1.63665941009318 5.87902345105871 5.79032414857611 2430029.353817733 0.925583943588207 158.584419809283 20.9712345749054 -84.6509507778736 4032947.85452061 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
1953-Oct-02 17:15 < 00:01 Jupiter 1.75927915280244 1.75927849027699 1.75927981532809 5.30264131620205 5.21105411186896 2434653.218686117 0.747844175933286 89.8649107716403 28.9096856392167 80.1086640425084 3099864.11329727 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
1968-May-19 21:09 < 00:01 Jupiter 1.82088479797339 1.82088428851136 1.82088530743541 4.90165173035559 4.80581397896693 2439996.381243689 0.496709730741729 82.4453654773674 24.4813830880051 89.5595072244752 3328511.2035944 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
1981-Jan-28 18:53 < 00:01 Jupiter 1.8989166069099 1.8989161322033 1.89891708161681 5.58175231922811 5.5012587302324 2444633.286696204 0.329763731031873 70.5089589397738 18.842606606446 -78.8348086294702 4780560.28514146 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
2071-Mar-28 11:19 < 00:01 Jupiter 1.73189506712166 1.73189466491706 1.73189546932636 6.21244313343892 6.13321321816737 2477563.971466856 0.509818692521831 87.4407374340278 18.3797809227708 -85.7308646922549 4702856.90907531 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
2083-Dec-10 21:23 < 00:01 Jupiter 1.74496965931389 1.74496900696414 1.74497031166412 5.41256774539638 5.32213052016407 2482204.391091834 0.702678750109359 86.2632418058294 25.6267937214975 76.5261020544656 3362628.16401721 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
2098-Jul-28 20:38 < 00:01 Jupiter 1.79229628528328 1.79229566803165 1.79229690253521 4.88452088013475 4.78679045639125 2487548.360016875 0.953410267788692 100.910447103885 27.5813645242817 82.5327600315405 3148387.53387072 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
2111-Mar-25 08:46 00:01 Jupiter 1.78027569628986 1.78027516834893 1.78027622423272 5.34748953611278 5.25776388118824 2492169.865318326 1.07911584436084 171.485835637775 20.879424572021 -85.3393378953464 4229775.42692954 T 108 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:11 2020-Nov-13 04:32
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-23 22:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin