ASTROSAT CZTI

Data Quality Report

Orbit 33411

Creation date: 2024-06-27T20:48:32.232110
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/AS1C07_001T03_9000004790_33411cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33411cztM0_level2_quad_clean.evt
Size (bytes)1,123,073,280212,754,240
Size1.0 GB 202.9 MB
Events in quadrant A6,015,3631,470,753
Events in quadrant B9,835,7411,408,804
Events in quadrant C6,630,6091,379,053
Events in quadrant D10,658,5901,291,749

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02660
B02660
C02660
D02660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259484
B0374673
C0271853
D0407443

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0630
B0630
C0630
D0630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1292560.046422%
B1292510898.425532%
C12925610.471954%
D129253432.653772%

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 19234 12928 0 0 0.00% 0.00%
B 19234 12928 899 899 4.67% 6.95%
C 19234 12928 48 48 0.25% 0.37%
D 19233 12927 308 308 1.60% 2.38%

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 6 24395 75.64 1550 1525 302.4
A 13 254 23076 71.28 1550 1525 302.4
A 3 137 14040 41.39 1550 1525 302.4
B 5 172 2726899 9965.55 1478 1441 273.5
B 5 255 389062 1417.32 1478 1441 273.5
B 0 213 316805 1153.12 1478 1441 273.5
C 15 214 552604 1671.65 1460 1468 329.7
C 0 10 255147 769.43 1460 1468 329.7
C 14 254 46913 137.84 1460 1468 329.7
D 8 195 2649877 7602.95 1462 1425 348.3
D 2 250 602158 1724.53 1462 1425 348.3
D 13 249 346044 989.3 1462 1425 348.3

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