ASTROSAT CZTI

Data Quality Report

Orbit 29388

Creation date: 2024-06-27T20:03:26.759054
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/AS1A10_101T19_9000004228_29388cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29388cztM0_level2_quad_clean.evt
Size (bytes)783,253,44077,901,120
Size747.0 MB 74.3 MB
Events in quadrant A4,135,292469,060
Events in quadrant B3,898,931478,584
Events in quadrant C4,314,179461,701
Events in quadrant D10,864,059425,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169433
B0161572
C0174172
D0375992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75241602.126528%
B75241331.767677%
C75243134.160021%
D7524219429.160021%

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 7844 7525 30 30 0.38% 0.40%
B 7844 7525 8 8 0.10% 0.11%
C 7844 7525 0 0 0.00% 0.00%
D 7844 7525 1718 1718 21.90% 22.83%

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 1 113 413987 2121.32 962 940 194.7
A 13 254 14676 70.55 962 940 194.7
A 14 235 10037 46.72 962 940 194.7
B 0 229 66354 352.83 951 928 185.4
B 5 255 29400 153.55 951 928 185.4
B 12 111 22527 116.48 951 928 185.4
C 3 233 383485 1767.27 918 925 216.5
C 14 238 196130 901.76 918 925 216.5
C 14 254 72222 329.36 918 925 216.5
D 1 52 3549431 17568.19 843 821 202.0
D 12 33 3542404 17533.41 843 821 202.0
D 8 195 254954 1258.14 843 821 202.0

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