ASTROSAT CZTI

Data Quality Report

Orbit 29788

Creation date: 2024-06-27T20:07:44.999388
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_291T01_9000004278_29788cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29788cztM0_level2_quad_clean.evt
Size (bytes)616,325,76074,831,040
Size587.8 MB 71.4 MB
Events in quadrant A3,635,594475,112
Events in quadrant B5,997,303466,531
Events in quadrant C3,573,527442,753
Events in quadrant D5,021,048429,209

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149952
B0220412
C0146942
D0193492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64811061.635550%
B64802624.043210%
C64801502.314815%
D64803395.231481%

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 7731 6482 0 0 0.00% 0.00%
B 7730 6481 27 27 0.35% 0.42%
C 7730 6481 0 0 0.00% 0.00%
D 7730 6481 228 228 2.95% 3.52%

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 11848 59.71 940 927 182.9
A 12 96 11200 56.17 940 927 182.9
A 0 226 8219 39.87 940 927 182.9
B 6 159 1867506 11075.19 919 900 168.5
B 0 229 416332 2464.9 919 900 168.5
B 15 32 62052 362.83 919 900 168.5
C 14 238 145281 719.8 872 879 200.6
C 2 114 15707 73.91 872 879 200.6
C 3 233 11818 54.53 872 879 200.6
D 7 80 796311 3933.67 873 852 202.2
D 8 195 438772 2165.58 873 852 202.2
D 1 52 291244 1436.04 873 852 202.2

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