Observation information
- date-obs: 2021-02-04
- time-obs: 11:54:29.923000000
- date-end: 2021-02-06
- time-end: 05:56:12.880800000
- obs_id: A10_048T03_9000004154
- exposure: 77883.9504783
- sourceid: NGC 4981
- observer: chayan
- ra_pnt: 197.2029
- dec_pnt: -6.7775
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_048T03_9000004154cztM0_level2_bc.evt
| modeM0/AS1A10_048T03_9000004154cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,499,014,400 | 1,650,453,120 |
Size | 5.1 GB
| 1.5 GB
|
Events in quadrant A | 27,919,654 | 10,627,128 |
Events in quadrant B | 30,385,586 | 10,928,006 |
Events in quadrant C | 26,142,075 | 10,425,106 |
Events in quadrant D | 73,776,064 | 9,633,347 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 216 | 0 |
B | 0 | 216 | 0 |
C | 0 | 216 | 0 |
D | 0 | 216 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 262135 | 0 |
B | 0 | 270474 | 0 |
C | 0 | 258965 | 0 |
D | 0 | 430224 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2484 | 0 |
B | 0 | 2484 | 0 |
C | 0 | 2484 | 0 |
D | 0 | 2484 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 122269 | 1779 | 1.454989% |
B | 122268 | 2669 | 2.182910% |
C | 122268 | 2394 | 1.957994% |
D | 122268 | 13129 | 10.737887% |
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 | 151304 | 122274 | 117 | 117 | 0.08% | 0.10% |  |
B | 151304 | 122269 | 244 | 244 | 0.16% | 0.20% |  |
C | 151304 | 122273 | 1 | 1 | 0.00% | 0.00% |  |
D | 151304 | 122271 | 1267 | 1267 | 0.84% | 1.04% |  |
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 | 12 | 96 | 1195605 | 841.84 | 6637 | 6530 | 1412.5 |
A | 1 | 113 | 424366 | 295.82 | 6637 | 6530 | 1412.5 |
A | 13 | 254 | 208042 | 142.67 | 6637 | 6530 | 1412.5 |
B | 10 | 245 | 3212440 | 2552.53 | 6742 | 6580 | 1256.0 |
B | 10 | 246 | 509413 | 400.36 | 6742 | 6580 | 1256.0 |
B | 0 | 229 | 378158 | 295.85 | 6742 | 6580 | 1256.0 |
C | 3 | 233 | 814444 | 538.0 | 6446 | 6434 | 1501.9 |
C | 2 | 114 | 235870 | 152.77 | 6446 | 6434 | 1501.9 |
C | 2 | 16 | 126208 | 79.75 | 6446 | 6434 | 1501.9 |
D | 8 | 195 | 21699200 | 15359.49 | 6222 | 6027 | 1412.4 |
D | 1 | 52 | 13820930 | 9781.41 | 6222 | 6027 | 1412.4 |
D | 7 | 80 | 10740855 | 7600.62 | 6222 | 6027 | 1412.4 |
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 |  |