P/2004 R3 (LINEAR-NEAT)
| Parameter |
Value |
| Designation |
P/2004 R3 (LINEAR-NEAT) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2004-05-24T11:56:33.253440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:42Z |
| Obs used |
143 |
| NEO |
- |
| M1 |
17.000 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2004-09-30.0000000 |
| e |
0.44181829 |
| q (au) |
2.141488 |
| a (au) |
3.836543 |
| i (deg) |
7.972159 |
| Ω (om, deg) |
318.806424 |
| ω (w, deg) |
5.298112 |
| M (ma, deg) |
16.854088 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.211 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.211 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
09:48:21.07 |
+07:47:41.3 |
HIP 48165 |
10.57 |
| 2026-02-03 12:00 |
09:48:05.67 |
+07:48:26.5 |
HIP 48165 |
14.30 |
| 2026-02-04 00:00 |
09:47:50.22 |
+07:49:12.2 |
HIP 48165 |
18.11 |
| 2026-02-04 12:00 |
09:47:34.72 |
+07:49:58.3 |
HIP 48165 |
21.96 |
| 2026-02-05 00:00 |
09:47:19.19 |
+07:50:44.9 |
HIP 47896 |
25.83 |
| 2026-02-05 12:00 |
09:47:03.61 |
+07:51:32.0 |
HIP 47896 |
21.96 |
| 2026-02-06 00:00 |
09:46:48.00 |
+07:52:19.5 |
HIP 47896 |
18.11 |
| 2026-02-06 12:00 |
09:46:32.35 |
+07:53:07.5 |
HIP 47896 |
14.29 |
| 2026-02-07 00:00 |
09:46:16.67 |
+07:53:55.9 |
HIP 47896 |
10.58 |
| 2026-02-07 12:00 |
09:46:00.95 |
+07:54:44.6 |
HIP 47896 |
7.13 |
| 2026-02-08 00:00 |
09:45:45.21 |
+07:55:33.8 |
HIP 47896 |
4.61 |
| 2026-02-08 12:00 |
09:45:29.44 |
+07:56:23.4 |
HIP 47896 |
4.83 |
| 2026-02-09 00:00 |
09:45:13.65 |
+07:57:13.3 |
HIP 47896 |
7.57 |
| 2026-02-09 12:00 |
09:44:57.84 |
+07:58:03.6 |
HIP 47896 |
11.11 |
| 2026-02-10 00:00 |
09:44:42.01 |
+07:58:54.3 |
HIP 47722 |
14.53 |
| 2026-02-10 12:00 |
09:44:26.17 |
+07:59:45.3 |
HIP 47722 |
10.81 |
| 2026-02-11 00:00 |
09:44:10.31 |
+08:00:36.7 |
HIP 47722 |
7.41 |
| 2026-02-11 12:00 |
09:43:54.44 |
+08:01:28.3 |
HIP 47722 |
5.03 |
| 2026-02-12 00:00 |
09:43:38.57 |
+08:02:20.3 |
HIP 47722 |
5.31 |
| 2026-02-12 12:00 |
09:43:22.68 |
+08:03:12.6 |
HIP 47722 |
7.97 |
| 2026-02-13 00:00 |
09:43:06.80 |
+08:04:05.1 |
HIP 47722 |
11.46 |
| 2026-02-13 12:00 |
09:42:50.91 |
+08:04:57.9 |
HIP 47722 |
15.22 |
| 2026-02-14 00:00 |
09:42:35.03 |
+08:05:51.0 |
HIP 47722 |
19.09 |
| 2026-02-14 12:00 |
09:42:19.16 |
+08:06:44.3 |
HIP 47722 |
23.02 |
| 2026-02-15 00:00 |
09:42:03.29 |
+08:07:37.9 |
HIP 47722 |
26.97 |
| 2026-02-15 12:00 |
09:41:47.43 |
+08:08:31.7 |
HIP 47446 |
25.35 |
| 2026-02-16 00:00 |
09:41:31.58 |
+08:09:25.7 |
HIP 47446 |
21.36 |
| 2026-02-16 12:00 |
09:41:15.75 |
+08:10:19.9 |
HIP 47446 |
17.37 |
| 2026-02-17 00:00 |
09:40:59.94 |
+08:11:14.3 |
HIP 47446 |
13.41 |
| 2026-02-17 12:00 |
09:40:44.15 |
+08:12:08.8 |
HIP 47446 |
9.50 |
| 2026-02-18 00:00 |
09:40:28.38 |
+08:13:03.5 |
HIP 47446 |
5.74 |
| 2026-02-18 12:00 |
09:40:12.64 |
+08:13:58.4 |
HIP 47446 |
2.77 |
| 2026-02-19 00:00 |
09:39:56.92 |
+08:14:53.4 |
HIP 47446 |
3.79 |
| 2026-02-19 12:00 |
09:39:41.24 |
+08:15:48.5 |
HIP 47446 |
7.27 |
| 2026-02-20 00:00 |
09:39:25.59 |
+08:16:43.7 |
HIP 47446 |
11.09 |
| 2026-02-20 12:00 |
09:39:09.98 |
+08:17:39.1 |
HIP 47446 |
14.98 |
| 2026-02-21 00:00 |
09:38:54.41 |
+08:18:34.5 |
HIP 47446 |
18.90 |
| 2026-02-21 12:00 |
09:38:38.88 |
+08:19:29.9 |
HIP 47446 |
22.82 |
| 2026-02-22 00:00 |
09:38:23.39 |
+08:20:25.5 |
HIP 47446 |
26.74 |
| 2026-02-22 12:00 |
09:38:07.95 |
+08:21:21.0 |
HIP 47446 |
30.65 |
| 2026-02-23 00:00 |
09:37:52.56 |
+08:22:16.6 |
HIP 47219 |
29.57 |
| 2026-02-23 12:00 |
09:37:37.22 |
+08:23:12.3 |
HIP 47219 |
28.01 |
| 2026-02-24 00:00 |
09:37:21.94 |
+08:24:07.9 |
HIP 47219 |
26.94 |