ASTROSAT CZTI

Data Quality Report

Orbit 22613

Creation date: 2024-06-27T18:43:34.527758
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/AS1A07_049T01_9000003358_22613cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22613cztM0_level2_quad_clean.evt
Size (bytes)504,103,68096,344,640
Size480.8 MB 91.9 MB
Events in quadrant A3,381,003615,114
Events in quadrant B3,506,481620,960
Events in quadrant C3,442,870592,685
Events in quadrant D4,441,500581,414

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149192
B0151902
C0149692
D0179822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7295270.370117%
B7295470.644277%
C7295650.891021%
D72951171.603838%

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 7710 7296 0 0 0.00% 0.00%
B 7710 7296 6 6 0.08% 0.08%
C 7710 7296 0 0 0.00% 0.00%
D 7710 7296 123 123 1.60% 1.69%

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 13 254 11711 60.78 876 855 178.6
A 0 226 7589 37.7 876 855 178.6
A 3 137 7575 37.62 876 855 178.6
B 5 172 25479 145.27 875 853 169.5
B 12 111 19934 112.56 875 853 169.5
B 0 229 18836 106.08 875 853 169.5
C 14 238 131797 661.39 843 847 198.0
C 0 10 12259 57.64 843 847 198.0
C 0 207 8482 38.56 843 847 198.0
D 1 52 630531 3019.65 851 826 208.5
D 1 239 428234 2049.56 851 826 208.5
D 13 249 62196 294.29 851 826 208.5

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