| Parameter |
Value |
| Designation |
C/2001 RX14 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-01-18T16:52:12.123840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:11Z |
| Obs used |
3261 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
6.500 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2002-12-31.0000000 |
| e |
1.00160630 |
| q (au) |
2.057562 |
| a (au) |
-1280.933457 |
| i (deg) |
30.574145 |
| Ω (om, deg) |
14.169847 |
| ω (w, deg) |
121.485659 |
| M (ma, deg) |
-0.000402 |
Magnitude
Scatter + Global Linear
$$
M_a = (7.044 + 3.284\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
7.044 |
| n |
3.284 |
| gf |
0.998 |
| gb |
-0.598 |
| k |
0.998 |
| δ90 |
9.993 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
20:10:07.94 |
-51:04:10.0 |
HIP 99222 |
23.51 |
| 2026-03-26 12:00 |
20:10:09.95 |
-51:04:24.9 |
HIP 99222 |
23.52 |
| 2026-03-27 00:00 |
20:10:11.93 |
-51:04:40.0 |
HIP 99222 |
23.53 |
| 2026-03-27 12:00 |
20:10:13.87 |
-51:04:55.2 |
HIP 99222 |
23.54 |
| 2026-03-28 00:00 |
20:10:15.79 |
-51:05:10.6 |
HIP 99222 |
23.56 |
| 2026-03-28 12:00 |
20:10:17.67 |
-51:05:26.0 |
HIP 99222 |
23.58 |
| 2026-03-29 00:00 |
20:10:19.51 |
-51:05:41.6 |
HIP 99222 |
23.59 |
| 2026-03-29 12:00 |
20:10:21.33 |
-51:05:57.4 |
HIP 99222 |
23.61 |
| 2026-03-30 00:00 |
20:10:23.11 |
-51:06:13.2 |
HIP 99222 |
23.63 |
| 2026-03-30 12:00 |
20:10:24.86 |
-51:06:29.2 |
HIP 99222 |
23.65 |
| 2026-03-31 00:00 |
20:10:26.58 |
-51:06:45.3 |
HIP 99222 |
23.68 |
| 2026-03-31 12:00 |
20:10:28.26 |
-51:07:01.6 |
HIP 99222 |
23.70 |
| 2026-04-01 00:00 |
20:10:29.91 |
-51:07:17.9 |
HIP 99222 |
23.72 |
| 2026-04-01 12:00 |
20:10:31.53 |
-51:07:34.4 |
HIP 99222 |
23.75 |
| 2026-04-02 00:00 |
20:10:33.11 |
-51:07:51.0 |
HIP 99222 |
23.77 |
| 2026-04-02 12:00 |
20:10:34.66 |
-51:08:07.7 |
HIP 99222 |
23.80 |
| 2026-04-03 00:00 |
20:10:36.18 |
-51:08:24.6 |
HIP 99222 |
23.82 |
| 2026-04-03 12:00 |
20:10:37.67 |
-51:08:41.5 |
HIP 99222 |
23.84 |
| 2026-04-04 00:00 |
20:10:39.12 |
-51:08:58.6 |
HIP 99222 |
23.87 |
| 2026-04-04 12:00 |
20:10:40.53 |
-51:09:15.8 |
HIP 99222 |
23.90 |
| 2026-04-05 00:00 |
20:10:41.91 |
-51:09:33.1 |
HIP 99222 |
23.92 |
| 2026-04-05 12:00 |
20:10:43.26 |
-51:09:50.5 |
HIP 99222 |
23.95 |
| 2026-04-06 00:00 |
20:10:44.58 |
-51:10:08.0 |
HIP 99222 |
23.97 |
| 2026-04-06 12:00 |
20:10:45.86 |
-51:10:25.7 |
HIP 99222 |
23.99 |
| 2026-04-07 00:00 |
20:10:47.10 |
-51:10:43.4 |
HIP 99222 |
24.02 |
| 2026-04-07 12:00 |
20:10:48.32 |
-51:11:01.3 |
HIP 99222 |
24.04 |
| 2026-04-08 00:00 |
20:10:49.49 |
-51:11:19.2 |
HIP 99222 |
24.06 |
| 2026-04-08 12:00 |
20:10:50.64 |
-51:11:37.3 |
HIP 99222 |
24.09 |
| 2026-04-09 00:00 |
20:10:51.74 |
-51:11:55.5 |
HIP 99222 |
24.11 |
| 2026-04-09 12:00 |
20:10:52.82 |
-51:12:13.8 |
HIP 99222 |
24.13 |
| 2026-04-10 00:00 |
20:10:53.86 |
-51:12:32.2 |
HIP 99222 |
24.15 |
| 2026-04-10 12:00 |
20:10:54.86 |
-51:12:50.6 |
HIP 99222 |
24.17 |
| 2026-04-11 00:00 |
20:10:55.83 |
-51:13:09.2 |
HIP 99222 |
24.19 |
| 2026-04-11 12:00 |
20:10:56.76 |
-51:13:27.9 |
HIP 99222 |
24.21 |
| 2026-04-12 00:00 |
20:10:57.66 |
-51:13:46.7 |
HIP 99222 |
24.22 |
| 2026-04-12 12:00 |
20:10:58.52 |
-51:14:05.6 |
HIP 99222 |
24.24 |
| 2026-04-13 00:00 |
20:10:59.35 |
-51:14:24.5 |
HIP 99222 |
24.26 |
| 2026-04-13 12:00 |
20:11:00.14 |
-51:14:43.6 |
HIP 99222 |
24.27 |
| 2026-04-14 00:00 |
20:11:00.90 |
-51:15:02.7 |
HIP 99222 |
24.28 |
| 2026-04-14 12:00 |
20:11:01.62 |
-51:15:22.0 |
HIP 99222 |
24.30 |
| 2026-04-15 00:00 |
20:11:02.30 |
-51:15:41.3 |
HIP 99222 |
24.31 |
| 2026-04-15 12:00 |
20:11:02.95 |
-51:16:00.7 |
HIP 99222 |
24.32 |
| 2026-04-16 00:00 |
20:11:03.57 |
-51:16:20.3 |
HIP 99222 |
24.33 |