ASTROSAT CZTI

Data Quality Report

Orbit 03117

Creation date: 2024-06-27T14:24:53.223783
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_214T01_9000000428_03117cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03117cztM0_level2_quad_clean.evt
Size (bytes)607,285,44073,503,360
Size579.2 MB 70.1 MB
Events in quadrant A4,276,850427,708
Events in quadrant B3,988,732426,466
Events in quadrant C4,999,350418,154
Events in quadrant D4,585,860399,080

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180620
B0171610
C0204840
D0193030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79693644.567700%
B79692573.224997%
C79695456.839001%
D79694105.144937%

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 8084 7972 83 83 1.03% 1.04%
B 8084 7972 6 6 0.07% 0.08%
C 8084 7972 217 217 2.68% 2.72%
D 8084 7972 166 166 2.05% 2.08%

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 0 13 412642 2076.81 956 933 198.2
A 0 31 41213 203.19 956 933 198.2
A 12 189 39300 193.54 956 933 198.2
B 15 85 63034 322.8 973 950 192.3
B 15 204 51761 264.19 973 950 192.3
B 2 249 33121 167.27 973 950 192.3
C 14 223 1343463 6235.25 908 910 215.3
C 6 80 72581 332.86 908 910 215.3
C 1 192 12652 54.53 908 910 215.3
D 12 217 446894 1977.09 924 892 225.6
D 13 114 218505 964.66 924 892 225.6
D 13 120 185788 819.63 924 892 225.6

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