ASTROSAT CZTI

Data Quality Report

Orbit 24407

Creation date: 2024-06-27T19:05:41.448966
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_001T02_9000003600_24407cztM0_level2.evt modeM0/AS1A07_001T02_9000003600_24407cztM0_level2_quad_clean.evt
Size (bytes)476,314,56098,976,960
Size454.2 MB 94.4 MB
Events in quadrant A3,301,298636,545
Events in quadrant B3,397,409648,774
Events in quadrant C3,431,171617,821
Events in quadrant D3,814,443601,476

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144502
B0146042
C0145363
D0159612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7077490.692384%
B7077961.356507%
C70761061.498021%
D7076871.229508%

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 7907 7078 0 0 0.00% 0.00%
B 7907 7078 8 8 0.10% 0.11%
C 7906 7077 0 0 0.00% 0.00%
D 7906 7077 33 33 0.42% 0.47%

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 12356 67.57 855 837 170.5
A 3 137 7561 39.44 855 837 170.5
A 0 226 7257 37.66 855 837 170.5
B 5 172 20302 121.22 857 835 160.6
B 12 111 19554 116.56 857 835 160.6
B 11 111 17211 101.97 857 835 160.6
C 14 238 134095 701.1 824 828 190.1
C 7 247 46120 238.27 824 828 190.1
C 2 16 29506 150.87 824 828 190.1
D 1 52 514333 2536.01 830 802 202.5
D 8 195 143627 705.33 830 802 202.5
D 2 234 29739 142.9 830 802 202.5

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