ASTROSAT CZTI

Data Quality Report

Orbit 20221213_A12_095T02_9000005420_level2

Creation date: 2023-01-04T14:44:49.914452
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/AS1A12_095T02_9000005420cztM0_level2.fits modeM0/AS1A12_095T02_9000005420cztM0_level2_quad_clean.evt
Size (bytes)501,799,680510,560,640
Size478.6 MB 486.9 MB
Events in quadrant A2,989,1842,974,746
Events in quadrant B2,946,4243,141,935
Events in quadrant C3,036,3843,011,562
Events in quadrant D2,543,9062,655,583

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440540
B01130370
C01112900
D01661480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010920
B010920
C010920
D010920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02160
B02170
C02170
D02170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5363131205.817531%
B536314300.801775%
C53631810.151032%
D5363141317.702635%

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 80131 53614 0 0 0.00% 0.00%
B 80131 53627 0 0 0.00% 0.00%
C 80131 53631 0 0 0.00% 0.00%
D 80130 53496 0 0 0.00% 0.00%

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 9 19 2454 8.8 780 730 195.9
A 0 29 2405 8.55 780 730 195.9
A 7 110 2394 8.49 780 730 195.9
B 2 9 2528 11.5 779 741 155.5
B 3 80 2340 10.29 779 741 155.5
B 3 17 2083 8.63 779 741 155.5
C 1 81 2420 8.13 803 754 205.0
C 3 203 2394 8.0 803 754 205.0
C 3 202 2372 7.89 803 754 205.0
D 10 189 1883 6.35 726 665 191.8
D 7 3 1870 6.28 726 665 191.8
D 10 113 1821 6.03 726 665 191.8

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