ASTROSAT CZTI

Data Quality Report

Orbit 10435

Creation date: 2024-06-27T15:59:13.475543
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/AS1A03_126T01_9000001512_10435cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10435cztM0_level2_quad_clean.evt
Size (bytes)1,114,439,040192,859,200
Size1.0 GB 183.9 MB
Events in quadrant A8,924,7551,138,081
Events in quadrant B8,123,8421,244,678
Events in quadrant C6,631,8641,262,941
Events in quadrant D9,128,3691,232,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0444142
B0444144
C0444147
D0436133

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06518430108
B05303119701
C04486615869
D05372116766

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05518
B06225
C06225
D05417

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128752521.957282%
B138502882.079422%
C14178420.296234%
D147331060.719473%

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 18905 13903 164 164 0.87% 1.18%
B 18905 14732 153 153 0.81% 1.04%
C 18905 14975 1 1 0.01% 0.01%
D 18905 15106 65 65 0.34% 0.43%

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 13 251 2518395 8129.68 1541 1508 309.6
A 3 80 273710 879.23 1541 1508 309.6
A 8 5 143951 460.1 1541 1508 309.6
B 4 239 1396949 4457.62 1667 1627 313.0
B 11 51 89660 281.24 1667 1627 313.0
B 0 214 74636 233.24 1667 1627 313.0
C 14 234 30927 75.1 1692 1704 389.1
C 13 61 12464 27.65 1692 1704 389.1
C 14 67 5502 9.76 1692 1704 389.1
D 8 195 1061887 2552.23 1740 1696 415.4
D 1 20 705375 1693.99 1740 1696 415.4
D 13 104 281419 673.38 1740 1696 415.4

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