ASTROSAT CZTI

Data Quality Report

Orbit 22217

Creation date: 2024-06-27T18:38:13.986147
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/AS1A07_054T01_9000003286_22217cztM0_level2.evt modeM0/AS1A07_054T01_9000003286_22217cztM0_level2_quad_clean.evt
Size (bytes)407,880,000129,764,160
Size389.0 MB 123.8 MB
Events in quadrant A2,963,942894,870
Events in quadrant B3,013,799910,915
Events in quadrant C2,964,370858,465
Events in quadrant D2,992,119836,791

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126891
B0128031
C0127451
D0129151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A616240.064914%
B6162160.259656%
C6162370.600454%
D6163110.178485%

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 7477 6163 0 0 0.00% 0.00%
B 7477 6163 0 0 0.00% 0.00%
C 7477 6163 0 0 0.00% 0.00%
D 7478 6164 5 5 0.07% 0.08%

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 9559 58.16 768 755 151.4
A 0 226 6756 39.64 768 755 151.4
A 2 79 6389 37.22 768 755 151.4
B 12 111 16864 114.87 765 750 140.3
B 11 111 14617 98.85 765 750 140.3
B 14 111 13087 87.95 765 750 140.3
C 14 238 118761 706.06 728 734 167.2
C 0 10 8761 48.02 728 734 167.2
C 13 61 5083 26.02 728 734 167.2
D 1 52 156028 901.09 731 710 172.4
D 2 136 24048 135.4 731 710 172.4
D 2 234 22999 129.31 731 710 172.4

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