ASTROSAT CZTI

Data Quality Report

Orbit 45608

Creation date: 2024-06-27T23:14:10.544531
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_082T02_9000006112_45608cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45608cztM0_level2_quad_clean.evt
Size (bytes)192,211,20041,641,920
Size183.3 MB 39.7 MB
Events in quadrant A2,223,443273,725
Events in quadrant B1,619,318276,837
Events in quadrant C1,495,622273,711
Events in quadrant D1,573,740251,395

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085341
B066821
C063224
D063451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25851013.907157%
B25851997.698259%
C2583793.058459%
D2585491.895551%

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 2585 2585 1 1 0.04% 0.04%
B 2585 2585 120 120 4.64% 4.64%
C 2585 2584 77 77 2.98% 2.98%
D 2585 2585 27 27 1.04% 1.04%

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 1156483 19718.09 274 266 58.6
A 0 243 4699 75.6 274 266 58.6
A 14 235 3688 58.36 274 266 58.6
B 5 172 182886 3328.08 271 263 54.9
B 7 221 167443 3046.65 271 263 54.9
B 15 201 87721 1593.82 271 263 54.9
C 12 2 360658 5396.75 278 279 66.8
C 14 254 42627 634.17 278 279 66.8
C 0 207 3024 41.11 278 279 66.8
D 11 241 171890 2428.31 278 269 70.7
D 11 224 70481 993.44 278 269 70.7
D 3 13 57490 809.63 278 269 70.7

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