ASTROSAT CZTI

Data Quality Report

Orbit 03081

Creation date: 2024-06-27T14:24:23.574450
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/AS1G05_237T03_9000000426_03081cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03081cztM0_level2_quad_clean.evt
Size (bytes)502,001,28063,961,920
Size478.7 MB 61.0 MB
Events in quadrant A2,670,401401,077
Events in quadrant B4,944,808398,247
Events in quadrant C4,428,769387,198
Events in quadrant D2,802,098380,949

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112433
B0182802
C0168512
D0121412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A526670.132928%
B52664789.077098%
C52663536.703380%
D52661001.898975%

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 7422 5267 0 0 0.00% 0.00%
B 7422 5267 443 443 5.97% 8.41%
C 7422 5267 274 274 3.69% 5.20%
D 7422 5267 77 77 1.04% 1.46%

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 8 15 166566 1380.77 595 585 120.2
A 0 50 117303 970.96 595 585 120.2
A 5 113 27082 220.42 595 585 120.2
B 4 81 2041448 18336.68 587 575 111.3
B 2 249 236108 2116.2 587 575 111.3
B 15 204 162950 1458.89 587 575 111.3
C 0 219 1589128 12402.61 553 559 128.1
C 14 223 557017 4344.49 553 559 128.1
C 15 208 49623 383.06 553 559 128.1
D 7 6 326261 2311.86 560 546 140.9
D 10 199 87521 617.33 560 546 140.9
D 9 82 72963 514.0 560 546 140.9

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