ASTROSAT CZTI

Data Quality Report

Orbit 53043

Creation date: 2025-07-21T11:58:27.921074
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/AS1C09_011T07_9000006488_53043cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53043cztM0_level2_quad_clean.evt
Size (bytes)2,203,217,280213,926,400
Size2.1 GB 204.0 MB
Events in quadrant A35,678,153693,809
Events in quadrant B9,944,8541,714,532
Events in quadrant C14,385,7051,526,738
Events in quadrant D20,143,5531,285,548

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01184043
B0425901
C0555945
D0727121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182121149763.128706%
B182134302.360951%
C1821112666.951842%
D18213326417.921265%

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 19691 18211 11251 11251 57.14% 61.78%
B 19692 18213 299 299 1.52% 1.64%
C 19692 18213 1125 1125 5.71% 6.18%
D 19692 18213 3129 3129 15.89% 17.18%

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 9 191 23798093 75715.68 1253 1223 314.3
A 7 206 4581594 14573.59 1253 1223 314.3
A 0 8 971045 3085.73 1253 1223 314.3
B 4 81 613243 1552.65 1861 1796 393.8
B 10 44 536303 1357.28 1861 1796 393.8
B 10 63 357983 904.47 1861 1796 393.8
C 15 224 2683640 5448.06 1797 1779 492.3
C 7 80 1189004 2411.78 1797 1779 492.3
C 15 147 818625 1659.38 1797 1779 492.3
D 8 176 4073019 8168.33 1723 1641 498.4
D 12 17 3121882 6260.08 1723 1641 498.4
D 2 172 2334851 4681.08 1723 1641 498.4

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