ASTROSAT CZTI

Data Quality Report

Orbit 14262

Creation date: 2024-06-27T16:52:39.074394
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/AS1G08_014T01_9000002104_14262cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14262cztM0_level2_quad_clean.evt
Size (bytes)685,906,56087,048,000
Size654.1 MB 83.0 MB
Events in quadrant A3,973,414543,284
Events in quadrant B4,853,991537,354
Events in quadrant C4,152,239507,499
Events in quadrant D7,255,675495,665

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167953
B0195692
C0170462
D0270852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79361942.444556%
B79364565.745968%
C79361361.713710%
D793692711.680948%

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 8527 7939 0 0 0.00% 0.00%
B 8527 7939 150 150 1.76% 1.89%
C 8527 7939 0 0 0.00% 0.00%
D 8527 7939 562 562 6.59% 7.08%

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 71515 349.71 994 970 201.7
A 12 189 69001 337.25 994 970 201.7
A 0 226 8822 38.92 994 970 201.7
B 0 229 329715 1758.53 972 947 187.0
B 10 245 300789 1603.81 972 947 187.0
B 0 182 222296 1183.96 972 947 187.0
C 3 233 449747 2010.21 949 953 223.3
C 13 61 6873 26.52 949 953 223.3
C 10 22 4066 13.94 949 953 223.3
D 12 110 1022341 4619.25 929 909 221.1
D 13 122 1012621 4575.29 929 909 221.1
D 8 195 628701 2839.08 929 909 221.1

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