ASTROSAT CZTI

Data Quality Report

Orbit 29994

Creation date: 2024-06-27T20:09:33.778082
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_071T05_9000004308_29994cztM0_level2.evt modeM0/AS1A10_071T05_9000004308_29994cztM0_level2_quad_clean.evt
Size (bytes)657,936,00095,215,680
Size627.5 MB 90.8 MB
Events in quadrant A3,734,271633,082
Events in quadrant B5,535,189624,916
Events in quadrant C3,570,364597,734
Events in quadrant D6,637,406564,634

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150522
B0207302
C0143882
D0241662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66361281.928873%
B66362143.224834%
C66361592.396022%
D66366499.779988%

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 7761 6637 4 4 0.05% 0.06%
B 7761 6637 5 5 0.06% 0.08%
C 7761 6637 0 0 0.00% 0.00%
D 7761 6636 504 504 6.49% 7.59%

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 12 96 104461 568.46 920 904 182.2
A 3 1 62299 337.02 920 904 182.2
A 8 192 22321 117.57 920 904 182.2
B 6 159 1828162 10797.18 894 874 169.2
B 6 36 164853 968.93 894 874 169.2
B 12 111 20899 118.32 894 874 169.2
C 14 238 142347 696.93 870 879 203.0
C 3 233 21368 100.94 870 879 203.0
C 2 114 15586 72.45 870 879 203.0
D 7 80 3279750 16005.05 859 836 204.9
D 8 195 44810 214.65 859 836 204.9
D 10 199 30038 142.54 859 836 204.9

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