ASTROSAT CZTI

Data Quality Report

Orbit 10764

Creation date: 2024-06-27T16:03:42.520886
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/AS1G07_057T03_9000001552_10764cztM0_level2.evt modeM0/AS1G07_057T03_9000001552_10764cztM0_level2_quad_clean.evt
Size (bytes)159,491,52031,576,320
Size152.1 MB 30.1 MB
Events in quadrant A846,376215,579
Events in quadrant B1,556,612208,231
Events in quadrant C767,754219,763
Events in quadrant D1,548,109193,919

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034692
B057121
C032901
D056591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1602472.933833%
B160221413.358302%
C1602140.873908%
D160218711.672909%

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 2647 1603 4 4 0.15% 0.25%
B 2647 1603 87 87 3.29% 5.43%
C 2647 1603 0 0 0.00% 0.00%
D 2647 1603 147 147 5.55% 9.17%

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 15 223 24178 547.52 207 202 43.8
A 15 239 12993 292.1 207 202 43.8
A 1 162 6418 141.95 207 202 43.8
B 4 239 416462 10569.61 196 191 39.4
B 0 85 358550 9099.15 196 191 39.4
B 0 214 9309 231.52 196 191 39.4
C 13 61 1402 25.68 196 197 46.9
C 14 234 554 7.61 196 197 46.9
C 3 202 477 5.97 196 197 46.9
D 10 157 591289 12830.01 187 182 46.1
D 1 52 179802 3898.66 187 182 46.1
D 13 249 30364 655.1 187 182 46.1

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