ASTROSAT CZTI

Data Quality Report

Orbit 30050

Creation date: 2024-06-27T20:10:15.973023
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_071T09_9000004320_30050cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30050cztM0_level2_quad_clean.evt
Size (bytes)525,127,68066,873,600
Size500.8 MB 63.8 MB
Events in quadrant A3,414,085410,828
Events in quadrant B5,113,926410,829
Events in quadrant C3,582,157384,781
Events in quadrant D3,372,431384,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136822
B0192062
C0142472
D0135742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6218510.820199%
B62181071.720811%
C62181121.801222%
D6218270.434223%

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 7543 6219 3 3 0.04% 0.05%
B 7543 6219 0 0 0.00% 0.00%
C 7543 6219 11 11 0.15% 0.18%
D 7543 6219 12 12 0.16% 0.19%

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 8 192 23701 131.64 880 865 173.5
A 13 254 11270 59.98 880 865 173.5
A 3 137 8090 41.65 880 865 173.5
B 6 159 1654719 10224.11 868 850 161.8
B 5 255 48932 297.24 868 850 161.8
B 12 111 19511 115.36 868 850 161.8
C 14 238 158310 830.34 821 828 189.7
C 3 233 107669 563.33 821 828 189.7
C 15 208 74990 391.03 821 828 189.7
D 8 195 161406 836.14 824 808 192.1
D 2 250 60080 308.6 824 808 192.1
D 2 234 21624 108.38 824 808 192.1

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