ASTROSAT CZTI

Data Quality Report

Orbit 31589

Creation date: 2024-06-27T20:30:23.329847
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/AS1C06_006T06_9000004608_31589cztM0_level2.evt modeM0/AS1C06_006T06_9000004608_31589cztM0_level2_quad_clean.evt
Size (bytes)5,472,0001,509,120
Size5.2 MB 1.4 MB
Events in quadrant A31,3778,967
Events in quadrant B52,8316,691
Events in quadrant C31,6078,647
Events in quadrant D41,3257,398

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B033
C011
D011

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0524380
B0945754
C0487343
D0792628

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064
B053
C053
D053

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7200.000000%
B5600.000000%
C7200.000000%
D6300.000000%

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 263 81 0 0 0.00% 0.00%
B 252 64 0 0 0.00% 0.00%
C 275 86 0 0 0.00% 0.00%
D 257 69 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 97 27.21 8 8 3.3
A 3 137 84 23.23 8 8 3.3
A 0 226 80 22.01 8 8 3.3
B 6 159 13990 5476.54 5 6 2.6
B 12 1 8141 3185.9 5 6 2.6
B 4 80 7349 2875.73 5 6 2.6
C 14 238 1351 412.6 7 7 3.3
C 2 114 170 50.04 7 7 3.3
C 4 175 129 37.45 7 7 3.3
D 8 195 12459 4003.35 6 6 3.1
D 2 250 2515 806.59 6 6 3.1
D 10 203 502 159.45 6 6 3.1

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