ASTROSAT CZTI

Data Quality Report

Orbit 10005

Creation date: 2024-06-27T15:53:34.147939
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_002T02_9000001432_10005cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10005cztM0_level2_quad_clean.evt
Size (bytes)1,574,884,800295,286,400
Size1.5 GB 281.6 MB
Events in quadrant A11,057,7161,857,051
Events in quadrant B10,527,5051,910,090
Events in quadrant C9,963,9901,897,065
Events in quadrant D14,663,9721,769,423

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046018
B04608
C046010
D046018

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0491671580
B0480591565
C0465871502
D0606042361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0392
B0393
C0390
D0390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A219671950.887695%
B219601830.833333%
C21949660.300697%
D218397873.603645%

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 26516 22380 63 63 0.24% 0.28%
B 26516 22359 14 14 0.05% 0.06%
C 26516 22385 1 1 0.00% 0.00%
D 26516 22299 523 523 1.97% 2.35%

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 1049319 2001.15 2597 2543 523.1
A 0 226 23520 40.1 2597 2543 523.1
A 13 251 21380 36.01 2597 2543 523.1
B 0 219 117104 231.5 2624 2565 494.8
B 10 252 81567 159.67 2624 2565 494.8
B 12 111 56101 108.2 2624 2565 494.8
C 5 128 19273 28.47 2549 2570 586.7
C 13 61 18762 27.6 2549 2570 586.7
C 14 67 8335 9.83 2549 2570 586.7
D 8 195 1674283 2767.66 2473 2415 604.1
D 1 52 1538563 2542.98 2473 2415 604.1
D 2 16 788508 1301.32 2473 2415 604.1

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