ASTROSAT CZTI

Data Quality Report

Orbit 14913

Creation date: 2024-06-27T17:01:16.024078
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/AS1A04_099T01_9000002204_14913cztM0_level2.evt modeM0/AS1A04_099T01_9000002204_14913cztM0_level2_quad_clean.evt
Size (bytes)514,304,64096,540,480
Size490.5 MB 92.1 MB
Events in quadrant A3,633,470616,954
Events in quadrant B3,893,484613,012
Events in quadrant C3,729,478592,582
Events in quadrant D3,812,748582,159

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154583
B0162482
C0155812
D0164962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74521481.986044%
B74523324.455180%
C74521391.865271%
D74522162.898551%

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 7608 7455 0 0 0.00% 0.00%
B 7608 7455 87 87 1.14% 1.17%
C 7608 7455 0 0 0.00% 0.00%
D 7608 7455 58 58 0.76% 0.78%

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 12 189 53183 278.49 929 908 187.7
A 0 226 8062 38.11 929 908 187.7
A 12 194 6690 30.8 929 908 187.7
B 10 16 286056 1602.01 917 898 178.0
B 12 111 22084 119.02 917 898 178.0
B 11 111 19297 103.37 917 898 178.0
C 3 233 161896 769.12 901 906 209.3
C 7 247 48507 227.41 901 906 209.3
C 13 61 6325 25.89 901 906 209.3
D 10 70 236376 1095.7 898 877 214.9
D 7 254 114046 526.54 898 877 214.9
D 7 223 28738 129.63 898 877 214.9

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