2022-11-19, 09:09 PM
I was looking into next month and ran by a few near Earth approaches. I ran all of these using precision osculating elements provided by Horizons. These are all near the edge of my 13" and local conditions but are added to my calendar. Since they are close at near pass, I recommend plotting from your locations.
2015 RN35 on December 15, 08:10UT, makes a 1.78LD pass thru Fornax and Eridanus moving NE at just over 1.5'/min around mag 13.6. This big rock rock climbs into a much more favorable location for SE Texas as it reaches 42° and mag 13.3 (improved phase angle) in the predawn hours of Dec 16th. The 50% illuminated Moon is 90° away.
2018 YK2 on December 22, 05:34UT, this big rock makes a 2LD pass thru Lacerta moving NNE at 3.7'/min at mag 14.4. For me, very low in the NW. However, the next 24 hours offers a much higher vantage point (54° & due north - Camelopardalis) and phase angle improvement. Even though the distance doubles to 4LD and proper motion drops to 1'/min, the magnitude slightly brightens to 14.2.
2010 XC15 on December 27, 18:14UT, this very large rock makes a 2LD pass out of Bootes into Corona Borealis moving east at 2.6'/min near magnitude 14.0 when it's poorly placed for SE Texas. If I attempt observations 6 hours earlier, just prior to the onset of morning twilight, the big rock from space should be 63° up moving 2.4'/min in the east and ~mag 13.5. And still only slightly over 2LD away. The Moon is not a factor.
2015 RN35 on December 15, 08:10UT, makes a 1.78LD pass thru Fornax and Eridanus moving NE at just over 1.5'/min around mag 13.6. This big rock rock climbs into a much more favorable location for SE Texas as it reaches 42° and mag 13.3 (improved phase angle) in the predawn hours of Dec 16th. The 50% illuminated Moon is 90° away.
2018 YK2 on December 22, 05:34UT, this big rock makes a 2LD pass thru Lacerta moving NNE at 3.7'/min at mag 14.4. For me, very low in the NW. However, the next 24 hours offers a much higher vantage point (54° & due north - Camelopardalis) and phase angle improvement. Even though the distance doubles to 4LD and proper motion drops to 1'/min, the magnitude slightly brightens to 14.2.
2010 XC15 on December 27, 18:14UT, this very large rock makes a 2LD pass out of Bootes into Corona Borealis moving east at 2.6'/min near magnitude 14.0 when it's poorly placed for SE Texas. If I attempt observations 6 hours earlier, just prior to the onset of morning twilight, the big rock from space should be 63° up moving 2.4'/min in the east and ~mag 13.5. And still only slightly over 2LD away. The Moon is not a factor.