ASTROSAT CZTI

Data Quality Report

Orbit 45431

Creation date: 2024-06-27T23:11:36.335162
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/AS1A13_023T05_9000006062_45431cztM0_level2.fits modeM0/AS1A13_023T05_9000006062_45431cztM0_level2_quad_clean.evt
Size (bytes)121,429,44023,846,400
Size115.8 MB 22.7 MB
Events in quadrant A1,546,105149,694
Events in quadrant B776,378168,124
Events in quadrant C687,673165,682
Events in quadrant D1,374,599135,847

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055431
B032011
C029861
D050361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138318013.015184%
B1383443.181490%
C1383141.012292%
D138317712.798265%

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 1383 1383 124 124 8.97% 8.97%
B 1383 1383 19 19 1.37% 1.37%
C 1383 1383 5 5 0.36% 0.36%
D 1383 1383 155 155 11.21% 11.21%

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 10 83 713863 20947.74 155 152 34.1
A 13 248 189730 5564.2 155 152 34.1
A 9 191 27612 805.96 155 152 34.1
B 15 201 49603 1436.76 164 160 34.4
B 0 186 19589 564.59 164 160 34.4
B 0 171 14459 415.51 164 160 34.4
C 14 254 28964 723.99 161 163 39.8
C 12 2 14284 354.97 161 163 39.8
C 0 239 7105 174.51 161 163 39.8
D 2 249 343019 8521.25 150 145 40.2
D 1 52 216138 5367.95 150 145 40.2
D 13 171 66460 1648.09 150 145 40.2

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