Observation information
- date-obs: 2024-04-16
- time-obs: 15:40:38.882000000
- date-end: 2024-04-16
- time-end: 16:52:01.040300000
- obs_id: A13_094T02_9000006190
- exposure: 2905.37251639
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_094T02_9000006190_46243cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46243cztM0_level2_quad_clean.evt
|
Size (bytes) | 250,534,080 | 52,652,160 |
Size | 238.9 MB
| 50.2 MB
|
Events in quadrant A | 3,186,471 | 339,880 |
Events in quadrant B | 2,187,939 | 360,160 |
Events in quadrant C | 1,521,308 | 352,222 |
Events in quadrant D | 2,133,337 | 318,890 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 66 | 0 |
B | 0 | 66 | 0 |
C | 0 | 66 | 0 |
D | 0 | 66 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11799 | 1 |
B | 0 | 8698 | 1 |
C | 0 | 6736 | 2 |
D | 0 | 8527 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3134 | 215 | 6.860243% |
B | 3134 | 133 | 4.243778% |
C | 3133 | 68 | 2.170444% |
D | 3133 | 132 | 4.213214% |
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 | 4284 | 3134 | 22 | 22 | 0.51% | 0.70% | |
B | 4284 | 3134 | 13 | 13 | 0.30% | 0.41% | |
C | 4283 | 3133 | 8 | 8 | 0.19% | 0.26% | |
D | 4283 | 3133 | 72 | 72 | 1.68% | 2.30% | |
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 | 10 | 83 | 1618993 | 21326.62 | 358 | 350 | 75.9 |
A | 0 | 247 | 152333 | 2002.47 | 358 | 350 | 75.9 |
A | 0 | 226 | 10973 | 139.96 | 358 | 350 | 75.9 |
B | 3 | 112 | 565249 | 8005.64 | 360 | 350 | 70.6 |
B | 4 | 171 | 117957 | 1666.7 | 360 | 350 | 70.6 |
B | 5 | 32 | 54960 | 773.92 | 360 | 350 | 70.6 |
C | 12 | 2 | 64035 | 755.0 | 358 | 358 | 84.3 |
C | 2 | 14 | 33127 | 388.53 | 358 | 358 | 84.3 |
C | 3 | 9 | 17475 | 202.95 | 358 | 358 | 84.3 |
D | 12 | 1 | 312254 | 3500.82 | 355 | 343 | 89.1 |
D | 5 | 235 | 242967 | 2723.15 | 355 | 343 | 89.1 |
D | 3 | 13 | 98282 | 1099.24 | 355 | 343 | 89.1 |
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 | |