ASTROSAT CZTI

Data Quality Report

Orbit 44352

Creation date: 2024-06-27T23:02:32.537825
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/AS1A13_008T06_9000005994_44352cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44352cztM0_level2_quad_clean.evt
Size (bytes)1,503,642,240301,659,840
Size1.4 GB 287.7 MB
Events in quadrant A17,831,6101,947,530
Events in quadrant B11,031,2792,071,996
Events in quadrant C10,557,4952,024,096
Events in quadrant D14,725,0061,738,956

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04000
B04000
C04000
D04000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06838810
B0455584
C0452134
D0570264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1960314427.356017%
B196037053.596388%
C196044522.305652%
D1960416438.380943%

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 21062 19603 728 728 3.46% 3.71%
B 21063 19604 177 177 0.84% 0.90%
C 21064 19607 221 221 1.05% 1.13%
D 21064 19606 1254 1254 5.95% 6.40%

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 10 83 4402625 9500.18 2224 2176 463.2
A 15 223 2825847 6096.06 2224 2176 463.2
A 13 248 1719643 3707.86 2224 2176 463.2
B 0 219 476710 1053.04 2255 2185 450.6
B 5 255 275139 605.73 2255 2185 450.6
B 0 190 251416 553.08 2255 2185 450.6
C 14 254 1219776 2280.33 2227 2242 533.9
C 15 158 397581 740.43 2227 2242 533.9
C 15 208 75162 136.57 2227 2242 533.9
D 13 249 2943679 5443.24 2153 2092 540.4
D 1 52 790331 1458.59 2153 2092 540.4
D 5 235 513958 947.18 2153 2092 540.4

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