ASTROSAT CZTI

Data Quality Report

Orbit 24232

Creation date: 2024-06-27T19:03:47.078389
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/AS1A07_118T01_9000003586_24232cztM0_level2.evt modeM0/AS1A07_118T01_9000003586_24232cztM0_level2_quad_clean.evt
Size (bytes)472,798,08094,648,320
Size450.9 MB 90.3 MB
Events in quadrant A3,222,055610,632
Events in quadrant B3,328,796628,191
Events in quadrant C3,827,028597,207
Events in quadrant D3,504,693582,196

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134041
B0137131
C0155871
D0143841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6420400.623053%
B6420711.105919%
C64201121.744548%
D6420540.841121%

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 7675 6421 0 0 0.00% 0.00%
B 7675 6421 2 2 0.03% 0.03%
C 7675 6421 4 4 0.05% 0.06%
D 7675 6421 40 40 0.52% 0.62%

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 3 1 12255 68.47 833 815 167.1
A 13 254 10134 55.78 833 815 167.1
A 0 226 7197 38.2 833 815 167.1
B 0 245 34491 214.45 832 812 157.0
B 12 17 27036 166.98 832 812 157.0
B 12 111 18182 110.6 832 812 157.0
C 7 247 502084 2654.82 806 813 188.8
C 14 238 129011 678.96 806 813 188.8
C 2 16 48968 255.04 806 813 188.8
D 8 195 169669 858.49 815 796 196.7
D 1 52 148545 751.1 815 796 196.7
D 12 233 87846 442.53 815 796 196.7

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