ASTROSAT CZTI

Data Quality Report

Orbit 03995

Creation date: 2024-06-27T14:36:08.133033
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/AS1G05_247T01_9000000512_03995cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03995cztM0_level2_quad_clean.evt
Size (bytes)447,065,280106,767,360
Size426.4 MB 101.8 MB
Events in quadrant A3,301,624703,810
Events in quadrant B3,017,944719,317
Events in quadrant C2,803,947705,145
Events in quadrant D3,992,123670,101

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140603
B0129872
C0127062
D0161342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62282223.564547%
B6228671.075787%
C6228330.529865%
D62281632.617213%

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 7503 6229 93 93 1.24% 1.49%
B 7503 6229 0 0 0.00% 0.00%
C 7503 6229 2 2 0.03% 0.03%
D 7503 6229 96 96 1.28% 1.54%

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 0 50 405850 2791.76 722 707 145.1
A 0 118 43996 298.3 722 707 145.1
A 8 15 24891 166.65 722 707 145.1
B 3 0 110190 788.89 740 721 138.8
B 15 204 20067 139.42 740 721 138.8
B 0 183 15735 108.2 740 721 138.8
C 12 4 11170 63.78 715 718 163.9
C 13 61 5993 32.19 715 718 163.9
C 9 247 1934 7.42 715 718 163.9
D 2 63 1046783 6258.87 702 681 167.1
D 2 232 78316 464.49 702 681 167.1
D 10 246 66105 391.43 702 681 167.1

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