ASTROSAT CZTI

Data Quality Report

Orbit 43604

Creation date: 2024-06-27T22:53:34.996476
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_001T10_9000005890_43604cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43604cztM0_level2_quad_clean.evt
Size (bytes)1,031,590,08061,695,360
Size983.8 MB 58.8 MB
Events in quadrant A3,777,309661,707
Events in quadrant B6,763,034647,747
Events in quadrant C14,447,247111,810
Events in quadrant D12,770,44452,806

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150561
B0240371
C0467961
D0417265

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55501011.819820%
B555178414.123581%
C5551553399.675734%
D55505550100.000000%

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 6720 5550 14 14 0.21% 0.25%
B 6721 5551 595 595 8.85% 10.72%
C 6720 5550 5428 5428 80.77% 97.80%
D 6719 5549 4400 4400 65.49% 79.29%

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 744213 5695.49 635 622 130.6
A 2 79 189978 1450.36 635 622 130.6
A 15 222 108385 825.4 635 622 130.6
B 4 206 3026870 25984.26 608 592 116.5
B 5 235 584387 5012.59 608 592 116.5
B 0 183 257133 2202.71 608 592 116.5
C 15 142 7274618 247756.05 120 120 29.4
C 15 174 4765548 162301.73 120 120 29.4
C 15 126 1150271 39172.03 120 120 29.4
D 8 192 7815451 308015.53 70 66 25.4
D 4 212 1667534 65717.3 70 66 25.4
D 4 216 1435192 56560.37 70 66 25.4

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