ASTROSAT CZTI

Data Quality Report

Orbit 04131

Creation date: 2024-06-27T14:37:49.196848
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_195T01_9000000530_04131cztM0_level2.evt modeM0/AS1G05_195T01_9000000530_04131cztM0_level2_quad_clean.evt
Size (bytes)157,420,80017,637,120
Size150.1 MB 16.8 MB
Events in quadrant A1,226,59082,762
Events in quadrant B1,231,52890,202
Events in quadrant C1,053,70088,796
Events in quadrant D1,078,24386,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056801
B054430
C051410
D053030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2570903.501946%
B2570110.428016%
C257020.077821%
D257070.272374%

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 2570 2570 73 73 2.84% 2.84%
B 2570 2570 11 11 0.43% 0.43%
C 2570 2570 0 0 0.00% 0.00%
D 2570 2570 9 9 0.35% 0.35%

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 15 234 214861 3906.68 260 254 54.9
A 13 14 6157 107.46 260 254 54.9
A 12 194 2665 43.89 260 254 54.9
B 15 204 94899 1758.97 274 268 53.8
B 10 16 34470 635.74 274 268 53.8
B 4 81 17566 321.53 274 268 53.8
C 13 61 2212 30.25 269 270 64.2
C 10 65 1148 13.68 269 270 64.2
C 14 67 714 6.92 269 270 64.2
D 4 95 21912 328.66 261 253 65.9
D 10 172 15689 234.23 261 253 65.9
D 13 223 12906 192.0 261 253 65.9

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