ASTROSAT CZTI

Data Quality Report

Orbit 06221

Creation date: 2024-06-27T15:04:17.163382
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/AS1G06_103T01_9000000812_06221cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06221cztM0_level2_quad_clean.evt
Size (bytes)291,222,72064,154,880
Size277.7 MB 61.2 MB
Events in quadrant A2,141,782409,250
Events in quadrant B2,173,874415,279
Events in quadrant C2,058,323407,079
Events in quadrant D2,130,539387,152

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010618
B01068
C010610
D010618

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0121
C0123
D0131

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107121205
B0107351244
C0105291111
D0107791210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4609791.714038%
B4592661.437282%
C4630380.820734%
D4597481.044159%

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 5170 4961 0 0 0.00% 0.00%
B 5170 4968 1 1 0.02% 0.02%
C 5170 4995 0 0 0.00% 0.00%
D 5170 4976 1 1 0.02% 0.02%

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 0 31 34123 301.87 539 527 111.3
A 8 15 18337 160.03 539 527 111.3
A 15 236 6098 50.06 539 527 111.3
B 10 246 23078 214.41 541 527 105.2
B 0 219 15581 143.13 541 527 105.2
B 15 204 13516 123.5 541 527 105.2
C 1 16 4358 31.56 525 528 121.3
C 13 61 4133 29.71 525 528 121.3
C 9 54 2270 14.35 525 528 121.3
D 2 63 113100 872.13 524 508 129.1
D 2 136 17880 134.56 524 508 129.1
D 7 55 9866 72.49 524 508 129.1

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