ASTROSAT CZTI

Data Quality Report

Orbit 05504

Creation date: 2024-06-27T14:56:02.339456
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/AS1A02_162T01_9000000704_05504cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05504cztM0_level2_quad_clean.evt
Size (bytes)633,528,00080,386,560
Size604.2 MB 76.7 MB
Events in quadrant A3,601,780483,912
Events in quadrant B7,158,427447,621
Events in quadrant C3,843,931487,580
Events in quadrant D4,045,957464,496

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165024
B0266273
C0171735
D0178553

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79131131.428030%
B791394811.980286%
C79121211.529323%
D79131942.451662%

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 8793 7916 3 3 0.03% 0.04%
B 8793 7916 480 480 5.46% 6.06%
C 8793 7916 23 23 0.26% 0.29%
D 8793 7916 69 69 0.78% 0.87%

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 0 50 21286 106.16 926 902 192.0
A 13 6 11490 55.14 926 902 192.0
A 12 194 9186 43.14 926 902 192.0
B 15 255 2808918 16054.13 900 878 174.9
B 15 204 624856 3567.41 900 878 174.9
B 4 48 157246 893.99 900 878 174.9
C 9 247 276487 1315.73 896 899 209.5
C 1 16 57107 268.35 896 899 209.5
C 13 61 7291 30.52 896 899 209.5
D 2 152 417239 1891.24 890 861 220.2
D 11 192 50034 223.35 890 861 220.2
D 2 136 48235 215.18 890 861 220.2

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