ASTROSAT CZTI

Data Quality Report

Orbit 33209

Creation date: 2024-06-27T20:46:06.722515
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_067T01_9000004770_33209cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33209cztM0_level2_quad_clean.evt
Size (bytes)450,155,52072,031,680
Size429.3 MB 68.7 MB
Events in quadrant A2,484,388465,351
Events in quadrant B3,172,710457,577
Events in quadrant C2,764,922458,253
Events in quadrant D4,854,205431,494

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106503
B0127482
C0115142
D0181822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A526370.133004%
B52631372.603078%
C5263931.767053%
D52632354.465134%

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 7116 5264 0 0 0.00% 0.00%
B 7116 5264 83 83 1.17% 1.58%
C 7116 5264 68 68 0.96% 1.29%
D 7116 5264 184 184 2.59% 3.50%

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 9362 67.34 639 629 129.7
A 13 6 7372 51.99 639 629 129.7
A 3 137 5983 41.28 639 629 129.7
B 5 172 322070 2670.56 629 615 120.4
B 0 190 100074 826.28 629 615 120.4
B 0 219 95224 785.99 629 615 120.4
C 0 10 232115 1630.91 614 621 141.9
C 9 187 112734 789.85 614 621 141.9
C 14 67 8414 54.9 614 621 141.9
D 8 195 1265824 7744.01 610 597 163.4
D 2 250 354502 2166.13 610 597 163.4
D 13 249 277518 1694.94 610 597 163.4

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