ASTROSAT CZTI

Data Quality Report

Orbit 33432

Creation date: 2024-06-27T20:48:46.350717
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/AS1A11_046T04_9000004792_33432cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33432cztM0_level2_quad_clean.evt
Size (bytes)631,497,600123,477,120
Size602.2 MB 117.8 MB
Events in quadrant A3,460,489844,227
Events in quadrant B4,911,506817,390
Events in quadrant C3,566,368836,068
Events in quadrant D6,730,851772,044

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142703
B0190332
C0147182
D0248742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A673670.103919%
B67365167.660333%
C6736480.712589%
D67363975.893705%

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 9780 6738 0 0 0.00% 0.00%
B 9780 6738 409 409 4.18% 6.07%
C 9780 6738 30 30 0.31% 0.45%
D 9780 6738 327 327 3.34% 4.85%

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 15 47 406249 2591.92 782 768 156.4
A 13 6 19820 121.78 782 768 156.4
A 13 254 12653 75.97 782 768 156.4
B 5 255 1103341 7641.96 754 734 144.3
B 5 172 616894 4270.49 754 734 144.3
B 0 219 97865 673.2 754 734 144.3
C 15 214 289205 1650.79 755 758 174.7
C 1 23 109927 624.78 755 758 174.7
C 14 254 97284 552.42 755 758 174.7
D 8 195 2490778 13732.55 740 717 181.3
D 13 249 346923 1909.31 740 717 181.3
D 2 250 295847 1627.62 740 717 181.3

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