ASTROSAT CZTI

Data Quality Report

Orbit 40107

Creation date: 2024-06-27T22:12:25.371711
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/AS1A12_004T01_9000005520_40107cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40107cztM0_level2_quad_clean.evt
Size (bytes)1,107,927,360242,282,880
Size1.0 GB 231.1 MB
Events in quadrant A8,459,2021,655,644
Events in quadrant B7,399,1941,698,747
Events in quadrant C10,602,9441,574,318
Events in quadrant D13,353,9851,339,521

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0346375
B0322894
C0414854
D0504494

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490
B0490
C0490
D0500

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03160
B03160
C03160
D03160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A154651190.769479%
B15465370.239250%
C154655073.278371%
D15465169110.934368%

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 19792 15468 87 87 0.44% 0.56%
B 19792 15468 21 21 0.11% 0.14%
C 19792 15468 473 473 2.39% 3.06%
D 19792 15468 1580 1580 7.98% 10.21%

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 1187595 3448.99 1694 1659 343.9
A 13 248 308591 892.63 1694 1659 343.9
A 9 143 158018 454.73 1694 1659 343.9
B 0 189 439097 1328.91 1690 1640 329.2
B 4 171 119510 358.07 1690 1640 329.2
B 0 230 85749 255.51 1690 1640 329.2
C 9 187 3419513 8891.7 1645 1655 384.4
C 15 214 625194 1622.16 1645 1655 384.4
C 0 10 55151 139.17 1645 1655 384.4
D 12 227 4306414 11287.23 1556 1512 381.4
D 2 250 1482368 3882.73 1556 1512 381.4
D 13 249 596125 1559.04 1556 1512 381.4

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