ASTROSAT CZTI

Data Quality Report

Orbit 31583

Creation date: 2024-06-27T20:30:14.194744
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_094T72_9000004604_31583cztM0_level2.evt modeM0/AS1A10_094T72_9000004604_31583cztM0_level2_quad_clean.evt
Size (bytes)202,924,80045,123,840
Size193.5 MB 43.0 MB
Events in quadrant A1,049,963322,069
Events in quadrant B1,876,805318,729
Events in quadrant C1,091,402307,547
Events in quadrant D1,990,952273,665

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044211
B069211
C045091
D072401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A198170.353357%
B1981814.088844%
C1981271.362948%
D198131515.901060%

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 1981 1981 0 0 0.00% 0.00%
B 1981 1981 26 26 1.31% 1.31%
C 1981 1981 1 1 0.05% 0.05%
D 1981 1981 295 295 14.89% 14.89%

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 13 254 4150 71.0 272 268 54.7
A 3 137 2485 40.55 272 268 54.7
A 0 226 2337 37.84 272 268 54.7
B 6 159 564044 10958.84 268 263 51.4
B 4 80 198558 3854.48 268 263 51.4
B 12 1 18022 345.2 268 263 51.4
C 14 238 43502 737.48 251 253 58.6
C 4 175 27885 471.18 251 253 58.6
C 3 233 17538 294.74 251 253 58.6
D 12 233 476824 8431.03 235 228 56.5
D 12 218 335074 5923.46 235 228 56.5
D 8 195 157028 2773.8 235 228 56.5

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