ASTROSAT CZTI

Data Quality Report

Orbit 04661

Creation date: 2024-06-27T14:45:17.268617
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/AS1G05_167T01_9000000584_04661cztM0_level2.evt modeM0/AS1G05_167T01_9000000584_04661cztM0_level2_quad_clean.evt
Size (bytes)438,923,52067,953,600
Size418.6 MB 64.8 MB
Events in quadrant A2,564,229427,031
Events in quadrant B2,703,185436,830
Events in quadrant C2,580,608428,412
Events in quadrant D5,066,901375,920

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114382
B0116621
C0115811
D0190041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A556890.161638%
B5568100.179598%
C5568140.251437%
D55683937.058190%

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 6953 5569 0 0 0.00% 0.00%
B 6953 5569 1 1 0.01% 0.02%
C 6953 5569 9 9 0.13% 0.16%
D 6953 5569 402 402 5.78% 7.22%

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 7 16 23103 168.63 657 644 133.2
A 13 14 14134 101.29 657 644 133.2
A 12 194 6566 44.46 657 644 133.2
B 14 167 60348 471.14 672 658 126.7
B 15 204 32004 247.42 672 658 126.7
B 12 111 11599 86.36 672 658 126.7
C 9 247 64153 425.06 644 651 149.4
C 13 61 5349 31.45 644 651 149.4
C 9 68 4515 25.86 644 651 149.4
D 8 112 1464556 9964.06 609 591 146.9
D 13 235 867886 5903.0 609 591 146.9
D 2 234 154081 1044.69 609 591 146.9

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