21cm H Drift Scan Dec -15 RA 14.5 to 19.8

cgd

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Dec 1, 2025, 6:10:07 PM (2 days ago) Dec 1

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Would appreciate charts or feedback from anyone that has charts that cover this range. I am working with a fairly minimal setup equipment wise and I'm trying to assess where I need improvement especially regarding accuracy of RA and Dec coordinates .

Alex P

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Dec 1, 2025, 6:18:50 PM (2 days ago) Dec 1

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Looks Great.

I have data @ Dec +20 & +40 from several systems, not at this declination.

b alex pettit jr

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Dec 1, 2025, 6:28:15 PM (2 days ago) Dec 1

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Actually, I do Dec - 16 deg

cgd

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Dec 1, 2025, 7:06:47 PM (2 days ago) Dec 1

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Thanks Alex. Looks like I'm still off. I'm going to have to get my setup on a mount.

b alex pettit jr

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Dec 1, 2025, 7:17:38 PM (2 days ago) Dec 1

to 'cgd' via Society of Amateur Radio Astronomers

Realize all of this data is Not LSR corrected &

thus contains the Earth's rotational velocity Doppler Shift superimposed on the spectra

Grab some drift data @ Dec +40 to see the system performance ( Hline dB above ColdSky )

b alex pettit jr

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Dec 1, 2025, 7:36:20 PM (2 days ago) Dec 1

to 'b alex pettit jr' via Society of Amateur Radio Astronomers

Realize all of this data is Not LSR corrected &

thus contains the Earth's ORBITAL velocity Doppler Shift superimposed on the spectra

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