ASTROSAT CZTI

Data Quality Report

Orbit 25128

Creation date: 2024-06-27T19:14:14.656975
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/AS1A08_003T16_9000003676_25128cztM0_level2.evt modeM0/AS1A08_003T16_9000003676_25128cztM0_level2_quad_clean.evt
Size (bytes)585,573,12098,375,040
Size558.4 MB 93.8 MB
Events in quadrant A3,294,105661,776
Events in quadrant B3,344,382678,320
Events in quadrant C4,326,170633,597
Events in quadrant D6,344,404567,004

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136510
B0137600
C0176050
D0232020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6279721.146679%
B6279751.194458%
C62791542.452620%
D627879012.583625%

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 7599 6280 0 0 0.00% 0.00%
B 7599 6279 0 0 0.00% 0.00%
C 7599 6280 0 0 0.00% 0.00%
D 7598 6278 655 655 8.62% 10.43%

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 9842 53.07 854 839 169.6
A 0 226 7420 38.79 854 839 169.6
A 3 137 7295 38.06 854 839 169.6
B 12 111 18438 110.38 850 830 159.5
B 11 111 16766 99.9 850 830 159.5
B 14 111 15039 89.08 850 830 159.5
C 7 247 986304 5193.45 817 824 189.8
C 14 238 130879 685.39 817 824 189.8
C 9 54 17092 85.73 817 824 189.8
D 12 235 1412119 7318.58 794 775 192.8
D 1 52 1384518 7175.46 794 775 192.8
D 8 195 378194 1957.12 794 775 192.8

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