ASTROSAT CZTI

Data Quality Report

Orbit 24583

Creation date: 2024-06-27T19:07:34.205458
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/AS1T03_183T01_9000003610_24583cztM0_level2.evt modeM0/AS1T03_183T01_9000003610_24583cztM0_level2_quad_clean.evt
Size (bytes)728,372,160127,440,000
Size694.6 MB 121.5 MB
Events in quadrant A3,436,800879,303
Events in quadrant B4,301,416866,465
Events in quadrant C9,148,439774,986
Events in quadrant D4,663,089814,219

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152911
B0176811
C0324581
D0189951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7544420.556734%
B75443464.586426%
C7543121216.067878%
D7544630.835101%

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 7769 7546 0 0 0.00% 0.00%
B 7769 7546 203 203 2.61% 2.69%
C 7768 7545 551 551 7.09% 7.30%
D 7769 7546 10 10 0.13% 0.13%

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 12552 65.27 891 870 179.0
A 3 137 7992 39.79 891 870 179.0
A 0 226 7630 37.77 891 870 179.0
B 3 64 837433 5027.65 877 854 166.4
B 12 111 20455 117.8 877 854 166.4
B 11 111 17970 102.86 877 854 166.4
C 7 247 5443335 28681.4 819 824 189.8
C 2 16 341567 1795.68 819 824 189.8
C 14 238 130696 684.41 819 824 189.8
D 8 195 1331652 6395.37 854 827 208.1
D 1 52 47001 221.89 854 827 208.1
D 12 217 45152 213.01 854 827 208.1

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