ASTROSAT CZTI

Data Quality Report

Orbit 29575

Creation date: 2024-06-27T20:03:38.392519
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/AS1A10_101T19_9000004228_29575cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29575cztM0_level2_quad_clean.evt
Size (bytes)25,876,8008,052,480
Size24.7 MB 7.7 MB
Events in quadrant A180,42152,217
Events in quadrant B201,99652,850
Events in quadrant C194,24250,003
Events in quadrant D174,79150,878

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168
B0168
C0154
D0168

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01523670
B01847976
C01610731
D01520682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42610.234742%
B41600.000000%
C417255.995204%
D41900.000000%

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 702 480 0 0 0.00% 0.00%
B 672 471 0 0 0.00% 0.00%
C 690 473 0 0 0.00% 0.00%
D 698 478 0 0 0.00% 0.00%

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 13 254 760 61.82 46 45 11.6
A 0 13 507 39.95 46 45 11.6
A 3 137 418 32.25 46 45 11.6
B 0 189 16568 1540.45 45 44 10.7
B 15 33 8158 756.43 45 44 10.7
B 12 111 1072 95.84 45 44 10.7
C 14 238 16766 1463.05 41 41 11.4
C 14 254 12839 1119.53 41 41 11.4
C 2 114 947 79.25 41 41 11.4
D 8 195 10973 900.0 43 41 12.1
D 2 234 1307 104.23 43 41 12.1
D 12 33 1247 99.29 43 41 12.1

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