ASTROSAT CZTI

Data Quality Report

Orbit 12346

Creation date: 2024-06-27T16:25:49.921533
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_130T01_9000001822_12346cztM0_level2.evt modeM0/AS1A04_130T01_9000001822_12346cztM0_level2_quad_clean.evt
Size (bytes)333,584,64050,711,040
Size318.1 MB 48.4 MB
Events in quadrant A2,903,519310,288
Events in quadrant B2,344,301314,680
Events in quadrant C2,060,434310,740
Events in quadrant D2,501,374296,646

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115721
B095501
C088101
D0101731

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4301451.046268%
B4301461.069519%
C430130.069751%
D4301681.581028%

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 4302 4302 10 10 0.23% 0.23%
B 4302 4302 31 31 0.72% 0.72%
C 4302 4302 0 0 0.00% 0.00%
D 4302 4302 64 64 1.49% 1.49%

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 397000 3586.57 550 541 110.5
A 13 251 114625 1032.06 550 541 110.5
A 1 162 92906 835.58 550 541 110.5
B 4 239 73511 701.65 552 541 104.0
B 0 85 72322 690.22 552 541 104.0
B 0 190 28791 271.64 552 541 104.0
C 13 61 3885 27.58 528 533 121.6
C 3 202 1256 5.95 528 533 121.6
C 3 203 1157 5.13 528 533 121.6
D 1 52 303059 2421.73 523 511 124.9
D 10 253 150558 1201.04 523 511 124.9
D 10 199 22176 173.42 523 511 124.9

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