| Parameter |
Value |
| Designation |
316P/LONEOS-Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2006-11-07T01:27:06.275520Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T13:45:33Z |
| Obs used |
128 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2017-01-26T12:54:38.016000Z |
| Discovery magnitude (MPC) |
21.00 z |
| Discovery observatory (MPC) |
T09 · Subaru Telescope, Maunakea |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2007-09-04.0000000 |
| e |
0.16637404 |
| q (au) |
3.606774 |
| a (au) |
4.326609 |
| i (deg) |
9.882930 |
| Ω (om, deg) |
246.930761 |
| ω (w, deg) |
191.667732 |
| M (ma, deg) |
32.958072 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.818 + 4.167\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.818 |
| n |
4.167 |
| gf |
1.000 |
| gb |
-0.779 |
| k |
0.800 |
| 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) |
| 2026-03-26 00:00 |
08:59:20.24 |
+04:47:34.2 |
HIP 44260 |
22.00 |
| 2026-03-26 12:00 |
08:59:16.18 |
+04:48:58.9 |
HIP 44260 |
23.05 |
| 2026-03-27 00:00 |
08:59:12.36 |
+04:50:22.9 |
HIP 44260 |
24.11 |
| 2026-03-27 12:00 |
08:59:08.79 |
+04:51:46.2 |
HIP 44260 |
25.19 |
| 2026-03-28 00:00 |
08:59:05.45 |
+04:53:08.7 |
HIP 44260 |
26.26 |
| 2026-03-28 12:00 |
08:59:02.36 |
+04:54:30.4 |
HIP 44260 |
27.32 |
| 2026-03-29 00:00 |
08:58:59.51 |
+04:55:51.4 |
HIP 44260 |
28.37 |
| 2026-03-29 12:00 |
08:58:56.90 |
+04:57:11.7 |
HIP 44260 |
29.40 |
| 2026-03-30 00:00 |
08:58:54.54 |
+04:58:31.1 |
HIP 44260 |
30.40 |
| 2026-03-30 12:00 |
08:58:52.41 |
+04:59:49.8 |
HIP 44260 |
31.38 |
| 2026-03-31 00:00 |
08:58:50.53 |
+05:01:07.6 |
HIP 44260 |
32.33 |
| 2026-03-31 12:00 |
08:58:48.89 |
+05:02:24.6 |
HIP 44263 |
32.61 |
| 2026-04-01 00:00 |
08:58:47.49 |
+05:03:40.9 |
HIP 44263 |
32.48 |
| 2026-04-01 12:00 |
08:58:46.33 |
+05:04:56.3 |
HIP 44263 |
32.36 |
| 2026-04-02 00:00 |
08:58:45.41 |
+05:06:10.8 |
HIP 44263 |
32.24 |
| 2026-04-02 12:00 |
08:58:44.74 |
+05:07:24.5 |
HIP 44263 |
32.10 |
| 2026-04-03 00:00 |
08:58:44.30 |
+05:08:37.4 |
HIP 44263 |
31.96 |
| 2026-04-03 12:00 |
08:58:44.10 |
+05:09:49.4 |
HIP 44263 |
31.81 |
| 2026-04-04 00:00 |
08:58:44.14 |
+05:11:00.6 |
HIP 44263 |
31.65 |
| 2026-04-04 12:00 |
08:58:44.42 |
+05:12:10.8 |
HIP 44263 |
31.47 |
| 2026-04-05 00:00 |
08:58:44.94 |
+05:13:20.2 |
HIP 44263 |
31.27 |
| 2026-04-05 12:00 |
08:58:45.70 |
+05:14:28.7 |
HIP 44263 |
31.06 |
| 2026-04-06 00:00 |
08:58:46.70 |
+05:15:36.3 |
HIP 44263 |
30.83 |
| 2026-04-06 12:00 |
08:58:47.94 |
+05:16:43.0 |
HIP 44263 |
30.58 |
| 2026-04-07 00:00 |
08:58:49.41 |
+05:17:48.8 |
HIP 44263 |
30.32 |
| 2026-04-07 12:00 |
08:58:51.12 |
+05:18:53.7 |
HIP 44263 |
30.03 |
| 2026-04-08 00:00 |
08:58:53.06 |
+05:19:57.6 |
HIP 44263 |
29.73 |
| 2026-04-08 12:00 |
08:58:55.25 |
+05:21:00.6 |
HIP 44263 |
29.41 |
| 2026-04-09 00:00 |
08:58:57.66 |
+05:22:02.7 |
HIP 44263 |
29.07 |
| 2026-04-09 12:00 |
08:59:00.32 |
+05:23:03.8 |
HIP 44263 |
28.72 |
| 2026-04-10 00:00 |
08:59:03.21 |
+05:24:04.0 |
HIP 44263 |
28.36 |
| 2026-04-10 12:00 |
08:59:06.33 |
+05:25:03.2 |
HIP 44263 |
27.98 |
| 2026-04-11 00:00 |
08:59:09.68 |
+05:26:01.4 |
HIP 44263 |
27.60 |
| 2026-04-11 12:00 |
08:59:13.27 |
+05:26:58.7 |
HIP 44263 |
27.21 |
| 2026-04-12 00:00 |
08:59:17.09 |
+05:27:55.0 |
HIP 44263 |
26.83 |
| 2026-04-12 12:00 |
08:59:21.15 |
+05:28:50.3 |
HIP 44263 |
26.44 |
| 2026-04-13 00:00 |
08:59:25.43 |
+05:29:44.6 |
HIP 44263 |
26.07 |
| 2026-04-13 12:00 |
08:59:29.95 |
+05:30:37.9 |
HIP 44263 |
25.71 |
| 2026-04-14 00:00 |
08:59:34.69 |
+05:31:30.2 |
HIP 44263 |
25.38 |
| 2026-04-14 12:00 |
08:59:39.67 |
+05:32:21.5 |
HIP 44263 |
25.07 |
| 2026-04-15 00:00 |
08:59:44.87 |
+05:33:11.8 |
HIP 44263 |
24.81 |
| 2026-04-15 12:00 |
08:59:50.31 |
+05:34:01.1 |
HIP 44263 |
24.58 |
| 2026-04-16 00:00 |
08:59:55.96 |
+05:34:49.3 |
HIP 44315 |
24.02 |