ASTROSAT CZTI

Data Quality Report

Orbit 34098

Creation date: 2024-06-27T20:56:30.431427
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/AS1A05_208T01_9000004870_34098cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34098cztM0_level2_quad_clean.evt
Size (bytes)1,285,130,880180,264,960
Size1.2 GB 171.9 MB
Events in quadrant A5,915,5251,187,120
Events in quadrant B9,101,4771,147,799
Events in quadrant C7,166,8781,179,176
Events in quadrant D15,852,6161,038,466

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02660
B02660
C02660
D02660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264954
B0354343
C0290483
D0561253

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13119130.099093%
B131198606.555378%
C131192071.577864%
D13119242118.454150%

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 15895 13121 0 0 0.00% 0.00%
B 15895 13121 618 618 3.89% 4.71%
C 15895 13121 163 163 1.03% 1.24%
D 15895 13121 2411 2411 15.17% 18.38%

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 33363 105.57 1512 1482 302.0
A 13 254 24753 77.06 1512 1482 302.0
A 13 6 21925 67.69 1512 1482 302.0
B 5 172 2940402 10508.42 1465 1425 279.7
B 4 232 171089 606.64 1465 1425 279.7
B 0 219 64470 225.42 1465 1425 279.7
C 0 10 705275 2048.86 1471 1482 343.5
C 15 214 557557 1618.83 1471 1482 343.5
C 0 207 84331 241.19 1471 1482 343.5
D 7 223 5193011 15593.68 1362 1327 332.9
D 8 195 2776843 8336.5 1362 1327 332.9
D 2 250 745604 2235.5 1362 1327 332.9

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