ASTROSAT CZTI

Data Quality Report

Orbit 33466

Creation date: 2024-06-27T20:49:07.728369
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/AS1A11_047T10_9000004802_33466cztM0_level2.evt modeM0/AS1A11_047T10_9000004802_33466cztM0_level2_quad_clean.evt
Size (bytes)455,736,96081,342,720
Size434.6 MB 77.6 MB
Events in quadrant A2,588,532537,492
Events in quadrant B3,638,821545,808
Events in quadrant C3,034,807524,381
Events in quadrant D4,182,539486,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108163
B0141962
C0120252
D0161242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527490.170648%
B52741843.488813%
C5274951.801289%
D52741582.995829%

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 7337 5275 1 1 0.01% 0.02%
B 7337 5275 104 104 1.42% 1.97%
C 7337 5275 94 94 1.28% 1.78%
D 7337 5275 173 173 2.36% 3.28%

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 83997 655.99 643 633 127.1
A 7 192 9420 69.14 643 633 127.1
A 13 6 9318 68.34 643 633 127.1
B 0 213 427288 3564.92 637 622 119.7
B 5 172 329844 2750.75 637 622 119.7
B 5 255 141518 1177.23 637 622 119.7
C 15 214 227128 1614.52 615 621 140.3
C 9 187 212181 1507.98 615 621 140.3
C 0 10 109296 774.62 615 621 140.3
D 8 195 1087484 6956.62 604 593 156.2
D 2 250 464591 2969.81 604 593 156.2
D 13 249 84425 536.56 604 593 156.2

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