Observation information
- date-obs: 2021-02-01
- time-obs: 18:58:34.974100000
- date-end: 2021-02-02
- time-end: 20:59:12.982300000
- obs_id: A10_048T07_9000004148
- exposure: 51197.353175
- sourceid: NGC 4394
- observer: chayan
- ra_pnt: 186.4817
- dec_pnt: 18.21389
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A10_048T07_9000004148cztM0_level2_bc.evt
| modeM0/AS1A10_048T07_9000004148cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,165,102,080 | 1,079,136,000 |
Size | 3.9 GB
| 1.0 GB
|
Events in quadrant A | 17,125,848 | 6,928,933 |
Events in quadrant B | 17,751,820 | 7,144,935 |
Events in quadrant C | 39,341,492 | 6,615,426 |
Events in quadrant D | 46,467,376 | 6,491,534 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 167645 | 0 |
B | 0 | 170007 | 0 |
C | 0 | 244800 | 0 |
D | 0 | 257650 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1636 | 0 |
B | 0 | 1636 | 0 |
C | 0 | 1636 | 0 |
D | 0 | 1636 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 80294 | 882 | 1.098463% |
B | 80294 | 1092 | 1.360002% |
C | 80294 | 5590 | 6.961915% |
D | 80294 | 5288 | 6.585797% |
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 | 93639 | 80299 | 0 | 0 | 0.00% | 0.00% |  |
B | 93639 | 80297 | 2 | 2 | 0.00% | 0.00% |  |
C | 93639 | 80299 | 124 | 124 | 0.13% | 0.15% |  |
D | 93639 | 80298 | 1998 | 1998 | 2.13% | 2.49% |  |
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 | 4 | 2 | 272713 | 288.71 | 4327 | 4247 | 929.9 |
A | 13 | 254 | 133994 | 139.53 | 4327 | 4247 | 929.9 |
A | 5 | 168 | 48444 | 47.53 | 4327 | 4247 | 929.9 |
B | 5 | 255 | 373403 | 445.49 | 4402 | 4291 | 828.6 |
B | 15 | 33 | 181025 | 213.3 | 4402 | 4291 | 828.6 |
B | 10 | 245 | 117357 | 136.46 | 4402 | 4291 | 828.6 |
C | 3 | 233 | 22947483 | 23796.6 | 4106 | 4093 | 964.1 |
C | 15 | 208 | 188576 | 191.34 | 4106 | 4093 | 964.1 |
C | 14 | 254 | 154389 | 155.88 | 4106 | 4093 | 964.1 |
D | 8 | 195 | 24363995 | 25747.88 | 4162 | 4021 | 946.1 |
D | 1 | 52 | 3494255 | 3689.09 | 4162 | 4021 | 946.1 |
D | 12 | 79 | 2145879 | 2263.89 | 4162 | 4021 | 946.1 |
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 |  |