ASTROSAT CZTI

Data Quality Report

Orbit 07285

Creation date: 2024-06-27T15:17:59.312322
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/AS1G06_154T03_9000000996_07285cztM0_level2.evt modeM0/AS1G06_154T03_9000000996_07285cztM0_level2_quad_clean.evt
Size (bytes)323,236,80053,225,280
Size308.3 MB 50.8 MB
Events in quadrant A2,325,880314,542
Events in quadrant B2,371,521324,208
Events in quadrant C2,246,230322,304
Events in quadrant D2,508,721303,770

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103702
B0103562
C0102352
D0110042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49241943.939886%
B49241713.472786%
C49241242.518278%
D49242194.447604%

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 5044 4924 1 1 0.02% 0.02%
B 5044 4927 0 0 0.00% 0.00%
C 5044 4927 0 0 0.00% 0.00%
D 5044 4925 34 34 0.67% 0.69%

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 15 239 56514 454.55 586 570 123.1
A 8 15 12496 96.9 586 570 123.1
A 0 226 5763 42.19 586 570 123.1
B 0 214 54167 465.45 587 572 115.1
B 4 81 13361 111.07 587 572 115.1
B 12 111 11618 95.93 587 572 115.1
C 7 247 8212 56.96 571 571 134.1
C 1 16 6999 47.92 571 571 134.1
C 13 61 4459 28.98 571 571 134.1
D 2 216 181519 1254.62 573 553 144.2
D 2 14 110752 764.0 573 553 144.2
D 14 34 23765 160.93 573 553 144.2

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