ASTROSAT CZTI

Data Quality Report

Orbit 22614

Creation date: 2024-06-27T18:43:35.429139
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_22614cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22614cztM0_level2_quad_clean.evt
Size (bytes)567,959,04095,428,800
Size541.6 MB 91.0 MB
Events in quadrant A3,649,554600,917
Events in quadrant B3,745,995607,628
Events in quadrant C3,706,955580,303
Events in quadrant D5,569,134558,406

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161122
B0162752
C0161172
D0219852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7809450.576258%
B7810941.203585%
C7810991.267606%
D78102963.790013%

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 8514 7811 0 0 0.00% 0.00%
B 8515 7812 6 6 0.07% 0.08%
C 8515 7812 0 0 0.00% 0.00%
D 8515 7812 247 247 2.90% 3.16%

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 13329 64.95 945 922 191.0
A 3 137 8190 38.05 945 922 191.0
A 0 226 7975 36.92 945 922 191.0
B 12 111 22112 115.78 942 915 183.1
B 11 111 19535 101.71 942 915 183.1
B 5 172 18394 95.48 942 915 183.1
C 14 238 141297 652.04 910 916 215.3
C 0 207 9899 41.72 910 916 215.3
C 13 61 6352 25.25 910 916 215.3
D 1 52 1836209 8197.32 916 888 223.9
D 12 227 134279 595.78 916 888 223.9
D 7 223 44900 196.58 916 888 223.9

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