ASTROSAT CZTI

Data Quality Report

Orbit 33360

Creation date: 2024-06-27T20:47:51.949722
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_058T15_9000004786_33360cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33360cztM0_level2_quad_clean.evt
Size (bytes)576,403,20060,143,040
Size549.7 MB 57.4 MB
Events in quadrant A3,882,979368,826
Events in quadrant B4,247,474347,498
Events in quadrant C3,951,566362,065
Events in quadrant D4,991,869346,712

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151243
B0163442
C0150282
D0187042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56501132.000000%
B565057010.088496%
C56503355.929204%
D56503997.061947%

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 7262 5650 83 83 1.14% 1.47%
B 7262 5651 351 351 4.83% 6.21%
C 7262 5651 318 318 4.38% 5.63%
D 7262 5651 344 344 4.74% 6.09%

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 15 169 1303662 9718.51 664 651 134.1
A 13 254 8160 56.01 664 651 134.1
A 3 137 6333 42.38 664 651 134.1
B 5 172 825512 6653.52 645 629 124.0
B 0 219 457598 3685.92 645 629 124.0
B 5 200 149355 1199.63 645 629 124.0
C 1 23 854728 5746.29 637 641 148.6
C 15 214 244237 1638.91 637 641 148.6
C 15 208 224178 1503.96 637 641 148.6
D 8 195 962504 5558.97 630 617 173.0
D 2 250 580750 3352.72 630 617 173.0
D 14 173 352973 2036.35 630 617 173.0

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