ASTROSAT CZTI

Data Quality Report

Orbit 37536

Creation date: 2024-06-27T21:41:13.115082
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/AS1A10_113T02_9000005332_37536cztM0_level2.evt modeM0/AS1A10_113T02_9000005332_37536cztM0_level2_quad_clean.evt
Size (bytes)203,250,24034,223,040
Size193.8 MB 32.6 MB
Events in quadrant A1,669,024218,344
Events in quadrant B1,282,900222,945
Events in quadrant C1,376,236219,874
Events in quadrant D1,664,226203,936

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066412
B051971
C054161
D064801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2370351.476793%
B2370241.012658%
C2370291.223629%
D23701345.654008%

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 4493 2371 28 28 0.62% 1.18%
B 4493 2371 19 19 0.42% 0.80%
C 4493 2371 29 29 0.65% 1.22%
D 4492 2370 133 133 2.96% 5.61%

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 15 222 384203 6390.59 291 286 60.1
A 10 83 136874 2273.61 291 286 60.1
A 6 10 9380 151.38 291 286 60.1
B 5 172 100061 1752.15 288 282 56.9
B 0 230 8062 136.62 288 282 56.9
B 0 219 7908 133.91 288 282 56.9
C 14 254 109854 1644.06 281 282 66.6
C 15 214 102072 1527.29 281 282 66.6
C 0 10 62976 940.68 281 282 66.6
D 2 249 239047 3498.94 278 272 68.2
D 12 233 167820 2455.2 278 272 68.2
D 10 199 47463 691.52 278 272 68.2

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