ASTROSAT CZTI

Data Quality Report

Orbit 21070

Creation date: 2024-06-27T18:23:07.043382
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/AS1A05_075T05_9000003116_21070cztM0_level2.evt modeM0/AS1A05_075T05_9000003116_21070cztM0_level2_quad_clean.evt
Size (bytes)557,876,16050,135,040
Size532.0 MB 47.8 MB
Events in quadrant A2,163,337351,377
Events in quadrant B2,339,998357,282
Events in quadrant C2,123,472341,751
Events in quadrant D9,963,307150,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094831
B098381
C092291
D0325763

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4500320.711111%
B4500330.733333%
C4500360.800000%
D4499337575.016670%

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 5550 4501 3 3 0.05% 0.07%
B 5550 4501 5 5 0.09% 0.11%
C 5550 4501 0 0 0.00% 0.00%
D 5548 4498 3162 3162 56.99% 70.30%

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 12 96 78946 706.21 540 528 111.0
A 13 254 6776 56.27 540 528 111.0
A 0 226 4760 38.11 540 528 111.0
B 0 219 87443 843.57 541 527 103.0
B 3 64 46619 447.35 541 527 103.0
B 7 220 24673 234.35 541 527 103.0
C 14 238 80710 645.83 524 526 124.2
C 13 61 3594 24.71 524 526 124.2
C 14 111 1328 6.46 524 526 124.2
D 1 239 8490193 119466.16 286 279 71.1
D 13 153 126745 1779.57 286 279 71.1
D 1 52 84580 1186.24 286 279 71.1

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