101P/Chernykh
Metadata
| Parameter | Value |
|---|---|
| Designation | 101P/Chernykh |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-01-07T18:38:07.975680Z |
| Orbit solution date (soln_date, UTC) | 2024-08-26T10:57:16Z |
| Obs used | 1211 |
| NEO | - |
| M1 | 13.700 |
| K1 | 4.500 |
| PC | - |
Osculating Elements
| Parameter | Value |
|---|---|
| Epoch (epoch_cal, TDB) | 2014-10-13.0000000 |
| e | 0.59774254 |
| q (au) | 2.325778 |
| a (au) | 5.781815 |
| i (deg) | 5.033943 |
| Ω (om, deg) | 116.589097 |
| ω (w, deg) | 277.434541 |
| M (ma, deg) | 224.396168 |
Magnitude
Scatter + Global Linear
$$ M_a = (12.453 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
Model Parameters
| Parameter | Value |
|---|---|
| H0 | 12.453 |
| n | 2.000 |
| gf | 1.000 |
| gb | -0.997 |
| k | 1.000 |
| δ90 | 10.000 |
| Parameter | Symbol | Range | Description |
|---|---|---|---|
| Absolute magnitude at 1 AU from Sun and Earth | H0 | -5 to 20 | Intrinsic brightness of the comet |
| Photometric slope parameter | n | 2 to 6 | Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor | gf |
0.8 to 1 | Degree of forward scattering |
| Backward scattering asymmetry factor | gb |
-1 to -0.5 | Degree of backward scattering |
| Partitioning coefficient | k | 0.8 to 1 | Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio | δ90 | 1 to 10 | Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Residuals (Piecewise)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| Start (UTC) | End (UTC) | a | b |
|---|---|---|---|
| 2019-07-04 | 2020-01-07 | +34.8196 | -13.263 |
| 2020-01-08 | 2021-01-03 | +3.7173 | -2.221 |
| 2021-01-03 | 2022-03-01 | +4.6114 | -3.220 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Finding Chart
Ephemeris
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-05-12 00:00 | 13:43:59.26 | -04:45:24.1 | HIP 67092 | 18.41 |
| 2026-05-12 12:00 | 13:43:49.85 | -04:44:39.2 | HIP 67092 | 20.25 |
| 2026-05-13 00:00 | 13:43:40.51 | -04:43:54.8 | HIP 67092 | 22.20 |
| 2026-05-13 12:00 | 13:43:31.21 | -04:43:10.8 | HIP 67092 | 24.23 |
| 2026-05-14 00:00 | 13:43:21.97 | -04:42:27.4 | HIP 66966 | 26.07 |
| 2026-05-14 12:00 | 13:43:12.79 | -04:41:44.4 | HIP 66966 | 25.65 |
| 2026-05-15 00:00 | 13:43:03.67 | -04:41:01.8 | HIP 66966 | 25.45 |
| 2026-05-15 12:00 | 13:42:54.60 | -04:40:19.8 | HIP 66966 | 25.47 |
| 2026-05-16 00:00 | 13:42:45.59 | -04:39:38.2 | HIP 66966 | 25.72 |
| 2026-05-16 12:00 | 13:42:36.65 | -04:38:57.2 | HIP 66966 | 26.17 |
| 2026-05-17 00:00 | 13:42:27.76 | -04:38:16.6 | HIP 66966 | 26.82 |
| 2026-05-17 12:00 | 13:42:18.94 | -04:37:36.6 | HIP 66966 | 27.64 |
| 2026-05-18 00:00 | 13:42:10.18 | -04:36:57.0 | HIP 66966 | 28.62 |
| 2026-05-18 12:00 | 13:42:01.48 | -04:36:18.0 | HIP 66966 | 29.74 |
| 2026-05-19 00:00 | 13:41:52.85 | -04:35:39.5 | HIP 66966 | 30.97 |
| 2026-05-19 12:00 | 13:41:44.29 | -04:35:01.5 | HIP 66966 | 32.30 |
| 2026-05-20 00:00 | 13:41:35.80 | -04:34:24.0 | HIP 66675 | 31.98 |
| 2026-05-20 12:00 | 13:41:27.37 | -04:33:47.0 | HIP 66675 | 30.10 |
| 2026-05-21 00:00 | 13:41:19.01 | -04:33:10.6 | HIP 66675 | 28.29 |
| 2026-05-21 12:00 | 13:41:10.72 | -04:32:34.8 | HIP 66675 | 26.55 |
| 2026-05-22 00:00 | 13:41:02.50 | -04:31:59.4 | HIP 66675 | 24.89 |
| 2026-05-22 12:00 | 13:40:54.36 | -04:31:24.6 | HIP 66675 | 23.33 |
| 2026-05-23 00:00 | 13:40:46.28 | -04:30:50.4 | HIP 66675 | 21.87 |
| 2026-05-23 12:00 | 13:40:38.28 | -04:30:16.7 | HIP 66675 | 20.54 |
| 2026-05-24 00:00 | 13:40:30.35 | -04:29:43.6 | HIP 66675 | 19.36 |
| 2026-05-24 12:00 | 13:40:22.50 | -04:29:11.0 | HIP 66675 | 18.34 |
| 2026-05-25 00:00 | 13:40:14.72 | -04:28:38.9 | HIP 66675 | 17.51 |
| 2026-05-25 12:00 | 13:40:07.02 | -04:28:07.4 | HIP 66675 | 16.89 |
| 2026-05-26 00:00 | 13:39:59.39 | -04:27:36.5 | HIP 66675 | 16.49 |
| 2026-05-26 12:00 | 13:39:51.85 | -04:27:06.2 | HIP 66675 | 16.33 |
| 2026-05-27 00:00 | 13:39:44.37 | -04:26:36.4 | HIP 66675 | 16.40 |
| 2026-05-27 12:00 | 13:39:36.98 | -04:26:07.2 | HIP 66675 | 16.70 |
| 2026-05-28 00:00 | 13:39:29.67 | -04:25:38.5 | HIP 66675 | 17.20 |
| 2026-05-28 12:00 | 13:39:22.43 | -04:25:10.4 | HIP 66675 | 17.88 |
| 2026-05-29 00:00 | 13:39:15.28 | -04:24:42.9 | HIP 66675 | 18.71 |
| 2026-05-29 12:00 | 13:39:08.21 | -04:24:16.0 | HIP 66675 | 19.68 |
| 2026-05-30 00:00 | 13:39:01.22 | -04:23:49.7 | HIP 66675 | 20.75 |
| 2026-05-30 12:00 | 13:38:54.31 | -04:23:23.9 | HIP 66675 | 21.90 |
| 2026-05-31 00:00 | 13:38:47.48 | -04:22:58.7 | HIP 66675 | 23.12 |
| 2026-05-31 12:00 | 13:38:40.74 | -04:22:34.1 | HIP 66675 | 24.39 |
| 2026-06-01 00:00 | 13:38:34.08 | -04:22:10.1 | HIP 66675 | 25.70 |
| 2026-06-01 12:00 | 13:38:27.50 | -04:21:46.7 | HIP 66675 | 27.03 |
| 2026-06-02 00:00 | 13:38:21.01 | -04:21:23.9 | HIP 66675 | 28.39 |