ASTROSAT CZTI

Data Quality Report

Orbit 29532

Creation date: 2024-06-27T20:05:08.183170
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/AS1A10_073T07_9000004254_29532cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29532cztM0_level2_quad_clean.evt
Size (bytes)1,423,848,960165,317,760
Size1.3 GB 157.7 MB
Events in quadrant A6,440,4141,061,230
Events in quadrant B6,816,2511,096,265
Events in quadrant C6,830,7401,060,058
Events in quadrant D22,173,373903,783

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028218
B028420
C028224
D027713

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312
B0290
C0290
D0301

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288461896
B0300381995
C0297612015
D0808656229

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128501561.214008%
B128422301.790998%
C128213652.846892%
D12676388530.648470%

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 18358 12964 0 0 0.00% 0.00%
B 18356 12962 17 17 0.09% 0.13%
C 18354 12951 1 1 0.01% 0.01%
D 18233 12809 4006 4006 21.97% 31.27%

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 11 29 25467 70.84 1662 1622 336.6
A 13 254 24276 67.3 1662 1622 336.6
A 3 137 15618 41.58 1662 1622 336.6
B 0 229 273786 865.04 1646 1602 314.6
B 0 190 54483 168.06 1646 1602 314.6
B 12 111 38355 116.81 1646 1602 314.6
C 14 238 288173 766.76 1603 1618 373.7
C 3 233 208176 552.7 1603 1618 373.7
C 14 254 51377 133.14 1603 1618 373.7
D 8 195 13934205 39933.56 1480 1447 348.9
D 7 238 2014893 5770.86 1480 1447 348.9
D 7 223 280727 800.46 1480 1447 348.9

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