ASTROSAT CZTI

Data Quality Report

Orbit 22929

Creation date: 2024-06-27T18:47:40.494897
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/AS1T03_170T01_9000003388_22929cztM0_level2.evt modeM0/AS1T03_170T01_9000003388_22929cztM0_level2_quad_clean.evt
Size (bytes)476,881,92071,994,240
Size454.8 MB 68.7 MB
Events in quadrant A3,258,494441,284
Events in quadrant B3,374,440447,950
Events in quadrant C3,350,888432,971
Events in quadrant D4,031,589418,760

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132922
B0136012
C0136072
D0158342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62871021.622395%
B62871342.131382%
C62871722.735804%
D62871432.274535%

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 7517 6288 0 0 0.00% 0.00%
B 7517 6288 1 1 0.01% 0.02%
C 7517 6288 0 0 0.00% 0.00%
D 7517 6288 33 33 0.44% 0.52%

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 10195 56.09 845 829 167.0
A 0 226 7278 38.62 845 829 167.0
A 3 137 6801 35.76 845 829 167.0
B 0 190 51356 321.25 842 823 157.3
B 12 111 18178 110.33 842 823 157.3
B 11 111 15811 95.28 842 823 157.3
C 14 238 130714 696.61 820 827 186.5
C 7 247 18517 94.87 820 827 186.5
C 13 61 5683 26.04 820 827 186.5
D 1 52 697463 3529.11 827 805 197.4
D 13 153 71612 358.69 827 805 197.4
D 12 233 38633 191.63 827 805 197.4

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