Observation information
- date-obs: 2025-05-16
- time-obs: 11:35:57.838500000
- date-end: 2025-05-16
- time-end: 13:42:56.819600000
- obs_id: C09_011T07_9000006470
- exposure: 311.749661803
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T07_9000006470_52103cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52103cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,195,372,800 | 51,963,840 |
Size | 1.1 GB
| 49.6 MB
|
Events in quadrant A | 3,497,365 | 627,693 |
Events in quadrant B | 10,850,193 | 179,927 |
Events in quadrant C | 12,618,073 | 282,525 |
Events in quadrant D | 16,780,582 | 28,488 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14739 | 1 |
B | 0 | 36626 | 1 |
C | 0 | 41992 | 1 |
D | 0 | 54333 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6514 | 91 | 1.396991% |
B | 6515 | 4943 | 75.871067% |
C | 6515 | 3725 | 57.175748% |
D | 6515 | 6291 | 96.561781% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7619 | 6515 | 53 | 53 | 0.70% | 0.81% |  |
B | 7620 | 6515 | 2408 | 2408 | 31.60% | 36.96% |  |
C | 7620 | 6516 | 3208 | 3208 | 42.10% | 49.23% |  |
D | 7620 | 6516 | 6023 | 6023 | 79.04% | 92.43% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 5 | 240 | 143912 | 821.8 | 696 | 677 | 174.3 |
A | 4 | 3 | 111872 | 637.97 | 696 | 677 | 174.3 |
A | 8 | 246 | 78992 | 449.32 | 696 | 677 | 174.3 |
B | 8 | 3 | 9569094 | 191918.63 | 228 | 221 | 49.9 |
B | 10 | 44 | 109543 | 2192.62 | 228 | 221 | 49.9 |
B | 8 | 128 | 35516 | 707.9 | 228 | 221 | 49.9 |
C | 5 | 80 | 5459710 | 42017.02 | 463 | 458 | 129.9 |
C | 15 | 224 | 3532814 | 27186.7 | 463 | 458 | 129.9 |
C | 10 | 171 | 468060 | 3598.89 | 463 | 458 | 129.9 |
D | 6 | 42 | 12828820 | 129261.92 | 338 | 321 | 99.2 |
D | 15 | 94 | 1242039 | 12511.74 | 338 | 321 | 99.2 |
D | 7 | 126 | 393494 | 3961.67 | 338 | 321 | 99.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |