ASTROSAT CZTI

Data Quality Report

Orbit 06222

Creation date: 2024-06-27T15:04:17.993193
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_06222cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06222cztM0_level2_quad_clean.evt
Size (bytes)563,025,600130,098,240
Size536.9 MB 124.1 MB
Events in quadrant A4,155,103838,643
Events in quadrant B4,263,776849,678
Events in quadrant C3,946,425829,527
Events in quadrant D4,072,503796,075

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01859332
B01884660
C01836348
D01867443

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90361231.361222%
B90241391.540337%
C9027720.797607%
D9031820.907984%

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 10034 9047 0 0 0.00% 0.00%
B 10034 9048 16 16 0.16% 0.18%
C 10034 9050 0 0 0.00% 0.00%
D 10034 9048 2 2 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 15 236 77291 360.99 1038 1014 211.3
A 0 31 44476 205.69 1038 1014 211.3
A 8 15 29189 133.34 1038 1014 211.3
B 15 35 66866 332.71 1043 1018 197.9
B 0 219 42463 209.41 1043 1018 197.9
B 0 214 27725 134.94 1043 1018 197.9
C 1 16 12127 48.03 1007 1015 231.4
C 13 61 7862 29.59 1007 1015 231.4
C 9 54 3092 8.98 1007 1015 231.4
D 2 63 141297 569.52 1012 980 246.4
D 2 136 30713 120.68 1012 980 246.4
D 14 173 21599 83.69 1012 980 246.4

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