| Parameter |
Value |
| Designation |
301P/LINEAR-NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2001-01-30T16:28:03.817920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:17Z |
| Obs used |
126 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
16.250 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2003-02-05.0000000 |
| e |
0.58742378 |
| q (au) |
2.346309 |
| a (au) |
5.686971 |
| i (deg) |
10.618305 |
| Ω (om, deg) |
355.783208 |
| ω (w, deg) |
189.400943 |
| M (ma, deg) |
53.438629 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.907 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.907 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.971 |
| δ90 |
1.000 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
04:00:55.42 |
+29:04:27.9 |
HIP 18781 |
34.99 |
| 2026-06-01 12:00 |
04:01:23.02 |
+29:05:48.9 |
HIP 18965 |
32.80 |
| 2026-06-02 00:00 |
04:01:50.63 |
+29:07:10.0 |
HIP 18965 |
26.63 |
| 2026-06-02 12:00 |
04:02:18.26 |
+29:08:31.0 |
HIP 18965 |
20.45 |
| 2026-06-03 00:00 |
04:02:45.91 |
+29:09:52.0 |
HIP 18965 |
14.28 |
| 2026-06-03 12:00 |
04:03:13.56 |
+29:11:13.1 |
HIP 18965 |
8.12 |
| 2026-06-04 00:00 |
04:03:41.23 |
+29:12:34.0 |
HIP 18965 |
2.17 |
| 2026-06-04 12:00 |
04:04:08.90 |
+29:13:55.0 |
HIP 18965 |
4.47 |
| 2026-06-05 00:00 |
04:04:36.59 |
+29:15:16.0 |
HIP 18965 |
10.58 |
| 2026-06-05 12:00 |
04:05:04.29 |
+29:16:36.9 |
HIP 18965 |
16.74 |
| 2026-06-06 00:00 |
04:05:32.00 |
+29:17:57.9 |
HIP 18965 |
22.93 |
| 2026-06-06 12:00 |
04:05:59.71 |
+29:19:18.8 |
HIP 19205 |
23.37 |
| 2026-06-07 00:00 |
04:06:27.44 |
+29:20:39.7 |
HIP 19205 |
21.81 |
| 2026-06-07 12:00 |
04:06:55.17 |
+29:22:00.5 |
HIP 19205 |
21.96 |
| 2026-06-08 00:00 |
04:07:22.91 |
+29:23:21.4 |
HIP 19365 |
23.22 |
| 2026-06-08 12:00 |
04:07:50.65 |
+29:24:42.2 |
HIP 19365 |
19.19 |
| 2026-06-09 00:00 |
04:08:18.40 |
+29:26:02.9 |
HIP 19365 |
16.57 |
| 2026-06-09 12:00 |
04:08:46.16 |
+29:27:23.7 |
HIP 19365 |
16.05 |
| 2026-06-10 00:00 |
04:09:13.92 |
+29:28:44.4 |
HIP 19365 |
17.81 |
| 2026-06-10 12:00 |
04:09:41.69 |
+29:30:05.1 |
HIP 19365 |
21.31 |
| 2026-06-11 00:00 |
04:10:09.45 |
+29:31:25.7 |
HIP 19365 |
25.83 |
| 2026-06-11 12:00 |
04:10:37.22 |
+29:32:46.3 |
HIP 19572 |
21.56 |
| 2026-06-12 00:00 |
04:11:05.00 |
+29:34:06.9 |
HIP 19572 |
17.27 |
| 2026-06-12 12:00 |
04:11:32.77 |
+29:35:27.4 |
HIP 19572 |
14.41 |
| 2026-06-13 00:00 |
04:12:00.54 |
+29:36:47.9 |
HIP 19572 |
13.92 |
| 2026-06-13 12:00 |
04:12:28.31 |
+29:38:08.3 |
HIP 19572 |
16.00 |
| 2026-06-14 00:00 |
04:12:56.09 |
+29:39:28.7 |
HIP 19572 |
19.86 |
| 2026-06-14 12:00 |
04:13:23.85 |
+29:40:49.1 |
HIP 19572 |
24.68 |
| 2026-06-15 00:00 |
04:13:51.62 |
+29:42:09.4 |
HIP 19835 |
20.86 |
| 2026-06-15 12:00 |
04:14:19.38 |
+29:43:29.6 |
HIP 19835 |
15.35 |
| 2026-06-16 00:00 |
04:14:47.14 |
+29:44:49.8 |
HIP 19835 |
10.59 |
| 2026-06-16 12:00 |
04:15:14.89 |
+29:46:09.9 |
HIP 19835 |
8.04 |
| 2026-06-17 00:00 |
04:15:42.64 |
+29:47:30.0 |
HIP 19835 |
9.66 |
| 2026-06-17 12:00 |
04:16:10.37 |
+29:48:50.1 |
HIP 19895 |
13.44 |
| 2026-06-18 00:00 |
04:16:38.10 |
+29:50:10.0 |
HIP 19895 |
14.30 |
| 2026-06-18 12:00 |
04:17:05.83 |
+29:51:29.9 |
HIP 20076 |
15.70 |
| 2026-06-19 00:00 |
04:17:33.54 |
+29:52:49.8 |
HIP 20076 |
10.36 |
| 2026-06-19 12:00 |
04:18:01.24 |
+29:54:09.6 |
HIP 20076 |
6.66 |
| 2026-06-20 00:00 |
04:18:28.93 |
+29:55:29.3 |
HIP 20076 |
7.54 |
| 2026-06-20 12:00 |
04:18:56.62 |
+29:56:49.0 |
HIP 20076 |
12.04 |
| 2026-06-21 00:00 |
04:19:24.28 |
+29:58:08.6 |
HIP 20076 |
17.56 |
| 2026-06-21 12:00 |
04:19:51.94 |
+29:59:28.1 |
HIP 20076 |
23.39 |
| 2026-06-22 00:00 |
04:20:19.58 |
+30:00:47.6 |
HIP 20076 |
29.34 |