ASTROSAT CZTI

Data Quality Report

Orbit 11397

Creation date: 2024-06-27T16:12:22.183767
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/AS1A04_022T04_9000001666_11397cztM0_level2.evt modeM0/AS1A04_022T04_9000001666_11397cztM0_level2_quad_clean.evt
Size (bytes)669,836,160114,160,320
Size638.8 MB 108.9 MB
Events in quadrant A4,766,437698,080
Events in quadrant B5,766,456679,781
Events in quadrant C4,058,840761,837
Events in quadrant D5,100,045708,575

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200133
B0231472
C0180872
D0212522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87662432.772074%
B87667058.042437%
C8766660.752909%
D87662552.908966%

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 9236 8768 62 62 0.67% 0.71%
B 9236 8768 308 308 3.33% 3.51%
C 9236 8768 0 0 0.00% 0.00%
D 9236 8768 155 155 1.68% 1.77%

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 8 5 457706 2146.84 1029 1003 212.7
A 13 248 194428 909.24 1029 1003 212.7
A 13 251 50559 232.95 1029 1003 212.7
B 4 239 1744440 8979.17 1011 985 194.2
B 15 204 46890 236.42 1011 985 194.2
B 0 214 23262 114.73 1011 985 194.2
C 13 61 7452 26.18 1040 1045 244.8
C 12 4 5109 16.6 1040 1045 244.8
C 8 128 2761 7.01 1040 1045 244.8
D 2 14 365820 1517.09 1011 983 240.5
D 2 120 200823 830.99 1011 983 240.5
D 10 253 168892 698.21 1011 983 240.5

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