| Parameter |
Value |
| Designation |
C/1914 F1 (Kritzinger) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1914-06-04T16:34:09.307200Z |
| Orbit solution date (soln_date, UTC) |
2024-04-15T15:43:28Z |
| Obs used |
69 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1914-05-20.0000000 |
| e |
1.00064055 |
| q (au) |
1.198609 |
| a (au) |
-1871.219758 |
| i (deg) |
23.919800 |
| Ω (om, deg) |
200.121883 |
| ω (w, deg) |
72.221112 |
| M (ma, deg) |
-0.000191 |
Magnitude
Scatter + Global Linear
$$
M_a = (10.496 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
10.496 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.988 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
05:17:31.46 |
+02:12:57.1 |
HIP 24699 |
7.23 |
| 2026-03-26 12:00 |
05:17:31.70 |
+02:13:02.2 |
HIP 24699 |
7.13 |
| 2026-03-27 00:00 |
05:17:31.94 |
+02:13:07.2 |
HIP 24699 |
7.03 |
| 2026-03-27 12:00 |
05:17:32.19 |
+02:13:12.2 |
HIP 24699 |
6.92 |
| 2026-03-28 00:00 |
05:17:32.45 |
+02:13:17.2 |
HIP 24699 |
6.82 |
| 2026-03-28 12:00 |
05:17:32.72 |
+02:13:22.2 |
HIP 24699 |
6.71 |
| 2026-03-29 00:00 |
05:17:33.00 |
+02:13:27.2 |
HIP 24699 |
6.60 |
| 2026-03-29 12:00 |
05:17:33.28 |
+02:13:32.2 |
HIP 24699 |
6.49 |
| 2026-03-30 00:00 |
05:17:33.57 |
+02:13:37.1 |
HIP 24699 |
6.38 |
| 2026-03-30 12:00 |
05:17:33.87 |
+02:13:42.1 |
HIP 24699 |
6.27 |
| 2026-03-31 00:00 |
05:17:34.18 |
+02:13:47.1 |
HIP 24699 |
6.16 |
| 2026-03-31 12:00 |
05:17:34.49 |
+02:13:52.0 |
HIP 24699 |
6.05 |
| 2026-04-01 00:00 |
05:17:34.81 |
+02:13:57.0 |
HIP 24699 |
5.93 |
| 2026-04-01 12:00 |
05:17:35.14 |
+02:14:01.9 |
HIP 24699 |
5.81 |
| 2026-04-02 00:00 |
05:17:35.47 |
+02:14:06.9 |
HIP 24699 |
5.70 |
| 2026-04-02 12:00 |
05:17:35.81 |
+02:14:11.8 |
HIP 24699 |
5.58 |
| 2026-04-03 00:00 |
05:17:36.16 |
+02:14:16.7 |
HIP 24699 |
5.46 |
| 2026-04-03 12:00 |
05:17:36.52 |
+02:14:21.6 |
HIP 24699 |
5.34 |
| 2026-04-04 00:00 |
05:17:36.88 |
+02:14:26.5 |
HIP 24699 |
5.22 |
| 2026-04-04 12:00 |
05:17:37.26 |
+02:14:31.4 |
HIP 24699 |
5.10 |
| 2026-04-05 00:00 |
05:17:37.63 |
+02:14:36.3 |
HIP 24699 |
4.97 |
| 2026-04-05 12:00 |
05:17:38.02 |
+02:14:41.2 |
HIP 24699 |
4.85 |
| 2026-04-06 00:00 |
05:17:38.41 |
+02:14:46.0 |
HIP 24699 |
4.72 |
| 2026-04-06 12:00 |
05:17:38.81 |
+02:14:50.9 |
HIP 24699 |
4.60 |
| 2026-04-07 00:00 |
05:17:39.22 |
+02:14:55.7 |
HIP 24699 |
4.47 |
| 2026-04-07 12:00 |
05:17:39.63 |
+02:15:00.5 |
HIP 24699 |
4.34 |
| 2026-04-08 00:00 |
05:17:40.05 |
+02:15:05.3 |
HIP 24699 |
4.22 |
| 2026-04-08 12:00 |
05:17:40.48 |
+02:15:10.1 |
HIP 24699 |
4.09 |
| 2026-04-09 00:00 |
05:17:40.92 |
+02:15:14.9 |
HIP 24699 |
3.96 |
| 2026-04-09 12:00 |
05:17:41.36 |
+02:15:19.7 |
HIP 24699 |
3.83 |
| 2026-04-10 00:00 |
05:17:41.81 |
+02:15:24.5 |
HIP 24699 |
3.70 |
| 2026-04-10 12:00 |
05:17:42.26 |
+02:15:29.2 |
HIP 24699 |
3.57 |
| 2026-04-11 00:00 |
05:17:42.72 |
+02:15:33.9 |
HIP 24699 |
3.44 |
| 2026-04-11 12:00 |
05:17:43.19 |
+02:15:38.6 |
HIP 24699 |
3.31 |
| 2026-04-12 00:00 |
05:17:43.67 |
+02:15:43.3 |
HIP 24699 |
3.17 |
| 2026-04-12 12:00 |
05:17:44.15 |
+02:15:48.0 |
HIP 24699 |
3.04 |
| 2026-04-13 00:00 |
05:17:44.64 |
+02:15:52.7 |
HIP 24699 |
2.92 |
| 2026-04-13 12:00 |
05:17:45.14 |
+02:15:57.3 |
HIP 24699 |
2.79 |
| 2026-04-14 00:00 |
05:17:45.64 |
+02:16:02.0 |
HIP 24699 |
2.66 |
| 2026-04-14 12:00 |
05:17:46.15 |
+02:16:06.6 |
HIP 24699 |
2.53 |
| 2026-04-15 00:00 |
05:17:46.66 |
+02:16:11.2 |
HIP 24699 |
2.41 |
| 2026-04-15 12:00 |
05:17:47.18 |
+02:16:15.8 |
HIP 24699 |
2.29 |
| 2026-04-16 00:00 |
05:17:47.71 |
+02:16:20.3 |
HIP 24699 |
2.17 |